How to find friends as a recently separated dad?

So I've recently separated from my wife. We did everything ( or nothing depending on how you look at it) together. I always relied on her for socialization. Now separated I have found I dont really have hobbies/interests. It's not that I don't want a hobby it's that none come to mind naturally.

Also Covid.

Also I'm introverted for sure

Im not looking for a romantic relationship but a relationship in the most general use of the term. Some people to socialize with.