As mentioned before don’t try anything too crazy without explicit discussion and consent. I really recommend Hot and Unbothered if you want to work on your sexual communication.

But if you want to get started before the book I recommend a Yes, No, Maybe list. Is is pretty common recommendation from sex positive therapists and kinksters. It’s basically a long list of every sexual thing you can think of. Without judgement you mark which ones you are Yes, No and Maybe about. Then you have a common list of new things in the Yes category you can try and some aspirational ones in Maybes. There are some templates online if you want to use them as a source