NostrApps.com is a solid list to play around with. 

Keep in mind this projects are still being built for the most part. Nice to jump around from time to time and see development. 

Here’s a little graphic I made which highlights the vast array within the ecosystem. There are a lot more now since I made that and the list continues to grow. 🤙🏻
https://m.primal.net/KdKw.jpg