Even if the games industry has largely moved on to making games for other platforms, there’s still tons of games being made for DOS every year. I’ve previously made a post about the DOS Game Jam, which also includes some recommendations, but someone from the DOS Game Jam discord has put together this really good list of native DOS games that were submitted to the jams.
There’s also lots of DOS games outside of game jams on Itch such as The Aching, Hibernated 1, and many others with the DOS and msdos tags on their product pages. Some of the games with these tags are just (very good) games inspired by classic DOS games, but there’s plenty that run natively on DOS as well. If you’d like to find more DOS games, including ones outside of Itch, this site seems to have a good list of some of the games out there.
If you want to talk about DOS game development, find out about upcoming DOS game jams, just want to talk about DOS games in a welcoming and inclusive environment, consider joining the DOS Shareware Zone discord.