Basically you have to bond over a game, be it physical, like sports or board like regular board games or as many people mentioned here D&D. For sports, regardless of your skill level, there’s a group. Beer leagues and such. Solo sports like mountain biking can work too but you have to be super consistent and really get into the sport where you have common ground.

If physical stuff is out of the question, then you have your board games. Even small towns have meetups.

The important thing is actually doing these. Friends don’t just come to you and you have to be consistent. Most people don’t just become friends in one or two seasons, it takes time and rapport building. And you can’t always wait for others to initiate the friends part. You might have to be the one that goes “hey wanna grab some wings after this.”