If you're looking for a specific kind of IF, you can create a poll to ask other people for recommendations.
For your consideration: XYZZY-eligible Best Individual Puzzle of 2020
by Sobol - 7 votes for 7 games, last vote on September 22, 2021; created on September 17, 2021
"This is for suggesting games released in 2020 which you think might be worth considering for Best Individual PUzzle in the XYZZY awards. This is not a zeroth-round nomination. This is not an official list. The point of poll is partly to..."
Parser games (any system, any age) with English rural setting/atmosphere
by Marco Innocenti - 10 votes for 10 games, last vote on September 21, 2021; created on September 17, 2021
"I'm looking for any parser game (modern or vintage) that is set in an English, rural, Victorian overall ambient, both indoor and outdoor. As an example, something in the mood of The Hound of the Baskervilles, with moors, villages,..."
Games that would work well as a movie
by Karl Ove Hufthammer - 5 votes for 5 games, last vote on September 6, 2021; created on August 17, 2021
"As a contrast to games with impossible-to-film moments, which games do you think would work well if they were adapted to the big screen, either as a feature film or a short film (live action or animation)? A game might work well because..."
Best mechanical/physics puzzles.
by Rovarsson - 9 votes for 9 games, last vote on August 29, 2021; created on June 23, 2021
"I had a lot of fun with the underground trolley puzzle in Axe of Kolt by Larry Horsfield. Any other games that feature cool mechanical devices, Rube Goldberg machines or solutions that rely on using the laws of physics (gravity of..."
Games for 13year old with adult reading level
by Lyon - 12 votes for 11 games, last vote on September 14, 2021; created on June 19, 2021
"I'm looking for game recommendations for a 13-year-old. They have an adult reading level, so vocabulary isn't a challenge, but don't take that as a restriction: I think they would be content reading a less mature work as well. Ideally, a..."
AGT must plays?
by Rovarsson - 7 votes for 4 games, last vote on May 20, 2021; created on May 7, 2021
"I've recently started playing Cliff Diver 1 and I quit because I got impossibly stuck. I don't want to give u^p on a potential treasure trove though. Recommendations for AGT games?"
Choice-Based Games with a Spoke and Hub Structure
by J. J. Guest - 7 votes for 6 games, last vote on July 17, 2021; created on April 18, 2021
"After playing a couple of the Fabled Lands gamebooks, I noticed they use a Spoke and Hub structure. I'm interested in choice-based IF games which use a similar structure. Sam Kabo Ashwell's blog post "Standard Patterns in Choice-Based..."
Medium-hard puzzle and adventure games
by Bentabnick - 7 votes for 7 games, last vote on April 25, 2021; created on April 6, 2021
"If you made or can find a medium-hard adventure game, puzzle game, or both, please respond."
Games where the player must draw their own map
by Paxton - 24 votes for 14 games, last vote on June 15, 2021; created on March 29, 2021
"Ideally these are games whose puzzles/challenges involve the map in some way (hidden connections, layout analysis, &c.) and aren't just games which could be mapped. I'm especially interested in games which use the action of drawing the..."
Games with detailed descriptions of art works
by Greg Frost - 14 votes for 9 games, last vote on September 14, 2021; created on March 22, 2021
"I am looking for games which use the literary technique of ekphrasis: "a vivid, often dramatic, verbal description of a visual work of art, either real or imagined" (Wikipedia)."
Games that are adaptations of conventional (not CYOA) books
by ChrisM - 38 votes for 26 games, last vote on July 22, 2021; created on February 24, 2021
"I'm interested in games that are straightforward adaptations of conventional books (probably novels, but I'd be interested to know if there are any non-fiction book adaptations). The ones that I know of are The Famous Five and The..."
Original short adventure games
by DarkWolf - 3 votes for 3 games, last vote on March 20, 2021; created on February 18, 2021
"I'm searching for an adventure game that's relatively short, with good descriptions - kind of like Spider and Web. Is there any other game like it?"
games with cooking
by jlvp1234 - 14 votes for 10 games, last vote on July 17, 2021; created on February 13, 2021
"I'm looking for games with cooking. ever since I have played gourmet and, gourmet version1, wich is the same, I have also played you got a stew going. does anyone have any recommendations other than these on wich I have just mentioned?"
RPG games worth playing for a text adventurer.
by Rovarsson - 5 votes for 4 games, last vote on March 22, 2021; created on February 12, 2021
"Over on the IF-Forum, there was a post recommending a number of Eamon games that are not hardcore RPG. So, can you suggest Eamon or other RPG-style games that lean towards IF? (Big on puzzles, low on kicking monster's bums and stats.)"
Games that are comfy and cozy
by MarkyJez - 19 votes for 13 games, last vote on March 22, 2021; created on January 11, 2021
"I'm interested in trying out games that are more relaxed than a lot of IFs are. Though I do like the adventure and excitement of those particular IFs, I also want to try out other stuff that is more quiet and understated, the kind of..."
games with guns
by jlvp1234 - 3 votes for 2 games, last vote on February 1, 2021; created on January 11, 2021
"I'm looking for games that are similar to gun mute and, amist the saige brush and cactus, might be butchering that final title."
Games featuring a central evolving puzzle mechanism
by Lance Campbell - 28 votes for 14 games, last vote on February 27, 2021; created on December 16, 2020
"Looking for any games that feature a core puzzle mechanism that the player masters and expands upon throughout the game. The puzzle mechanism should start out simple, and evolve and expand in an organic way, supporting the game and story..."
Visual Novels for IF fans
by autumnc - 15 votes for 8 games, last vote on February 27, 2021; created on December 10, 2020
"Visual novels are a form of interactive fiction whose community is almost entirely distinct from the interactive fiction community based around IFDB/IFComp. There are plenty of visual novels that can easily be recast as CYOA text-based..."
Best ChooseYourStory games
by MathBrush - 37 votes for 11 games, last vote on April 9, 2021; created on December 9, 2020
"I'm interested in knowing what the best ChooseYourStory games to play are"
Best of The Quill, PAW and GAC
by Denk - 41 votes for 33 games, last vote on March 14, 2021; created on November 15, 2020
"More than 1000 games were made with the British tools "The Quill", "PAW" and "GAC" through the 80s and early 90s. Some bad, others worth playing today. I would like to know which are the best. Those with the most votes are probably among..."