>>7644767I'm not OP.
If you'd like to do it on a voluntary basis, libraries are an easy route. Show a sample of your work, and tell the librarian you'd like to run a 2 hour event, or that you'd like to start a group that meets once a week or twice a month. They'll fix it up.
If you would like some small payment or money for supplies, they'll advise. The library will often cover supplies, and you could apply to a nearby "cultural council" with a grant proposal. If your request is reasonable and your art is appealing, you have an excellent chance of success.
Also, many local social groups (4H, Council on Aging, "Friends of Nearby Landmark", etc) hold informal art events and fundraisers often enough. They'd be happy enough to host you, I expect.