When I searched Nostr in the play store I found Primal and Amethyst. I tried out amethyst too but I think I like primal more.
Discussion
Primal is a solid app with slick UX. The Lightning wallet is built on Strike.
You don’t seem new to bitcoin, so I probably don’t need to tell you about the difference between custodial and self-custodial wallets, but if you have any questions you can just #AskNostr.
It's all about the Primal Moose