Start with something social - like volunteering for a specific event. There you will meet new people, but the commitment is short-lived. You can try to expand that friendship further on.

You can try picking a single class at a community college. For example, I took a writing class, which absolutely has interaction. Again it has a definitive start and end so that you don’t have to keep up with it.

Additionally, you might consider joining a workout class at a community center. It doesn’t have the full-time commitment of a gym, but it does allow you to meet some new people.

It looks like you kind of have analysis paralysis. Pick one thing, and try it. But understand that you may need to push yourself outside a comfort zone. And you really need to understand what it is you wish to obtain from it. Are you looking for mind activity? Or are you looking for a social environment? Or are you looking for a new hobby?

So what do I do? I now have some meerkats following me home.