How do you make friends?

I have mid-high ADD and small talks just make my brain jump off all the time and get bored, and then if i continue talking i have no idea what to say, just change topic all the time.

I do like being in a community, but its hard to find people that wanna do the same as you. But is it easier to make friends with similar diagnose? I can join adhd groups, but no idea how much i will get out from it?

Any tips? Thank you!