I've found that there are often two bicycle scenes: gear nerd which is expensive, and the people who think it's all the cooler that your ride is a fixed up junker or bought 2nd+ hand. The latter are a great source of cheap community, especially if you're interested in volunteering fixing up bicycles

ETA: The second community also wants to teach you how to repair your bike even if you don't want to hang out with them. Look for bicycle co-ops in your area. Often they'll have a pay what you can for stand time and they'll charge for parts, but they're happy to teach you to fix up your bike. They'll also sell you an affordable bike they've fixed up and they're likely to be flexible in accordance with needs.