Amazing! Welcome to the world (or worlds?)! There are so many different types of games that fit under this umbrella that it can be a little overwhelming.

The games I mentioned in my above comment offer a pretty good cross-section of different types of games built for solo. But there are some I didn't touch on. And there are also plenty of different types of multiplayer games with lots of different themes and mechanics - it's not just D&D anymore.

If you want any more specific recommendations or tips as you explore and get started - or if you just want to share about some of the games you've been playing - definitely start a new post about it in this community. I love chatting about these games!