For example, I've found that my community college has a Language Partners Program, where hordes of people (about 90% female) from other countries who want to learn English show up, and practically throw themselves at the three native English speakers who are actually participating in the program. If I was desperate (which I am not, yet) it would be a great way to get laid. Long term? No.
I'm currently betting on becoming a regular at a local Irish pub. The clientele is definitely around my age and attractive. I do need a wingman/woman to bring with me, though.
Also, dancing classes in theory should be a good place to meet women. I'm hoping private dancing instruction is better than the community college system; in my prior class the class consisted almost entirely of older married women without their husbands, couples, and young horndogs like myself.