I think Japan might be good for nerdy autistic guys. Various nerd culture things are very popular there like Anime, Nintendo, robots, J-pop, cosplay, & Japanese martial arts movies & weaponry
As for myself, I was not able to relocate till I got in my current relationship which started online & was mostly long-distance for about half a year. I moved from Louisiana to Vermont to be with her. I was single & looking for 8 years straight between my 1st relationship & my 2nd(but I somehow got my current gf a couple months after my 2nd ended ) & I do think I might of had better luck getting a relationship if I lived in a progressive city. I just posted my reasons for thinking that in another thread before I saw this one & I'm too lazy to retype a slightly different variation saying the same so I'll just copy & past
I lived in kinda a rural area & cant drive(vision is too bad) & there was no public transportation & both my parents worked so that kinda limited me with going out. Plus I lived in the deep south where the main things people did together offline besides work was church, bars/clubs, going to sports games, & outdoors stuff(eg camping, fishing, hunting). I'm a Secular Humanist, I was straight-edge, I hated sports, & I'm not into outdoor things. Plus I'm very progressive(for lack of a better word) & most people in that area are hard-core conservatives. So it should be no surprise that I had NO luck getting so much as a date offline. I f#cking hated living there except I miss the seafood & my parents. So I was VERY willing to relocate for a relationship when I had the opportunity to.