If you were here in Wyoming, US we would love to have you play with us. We are a non profit GROUP, not a paid band. As a club, we take all comers. Some like us and stay, some don't. In the 14 or so years I have been playing with this group, we have only had 2 "problem people" and ony one of those was serious. We just dealt with him until he finally died.
Could you put up an advert somewhere, inviting people to come and play with you? Find a nice large park with a gazebo or something and start playing/singing alone. Bet someone would come along and say, "hey, I have a ____ in the car, may I join you?"