Musician with tendency for beer.

OK, I'm 60 which is a bummer for me so don't make it worse. I just want to collaborate with an individual or group that, as a basis, believes in root styles and good lyrics. This doesn't mean I'm closed to new ideas.
So what can I do? I used to play rhythm guitar but that's a tad rusty. Then again a bit of of practice would help.
I am a very accomplished harp player and I can sing and engage an audience. Oddly I find it easier to get on stage in other countries, agree on a key and off we go.
If you'd like evidence then I can provide it.
I love the thrill of playing live. Blues maybe. Others? Why not?