I'm fresh out of college and it's definitely hard.

Hobbies can definitely help. Rock Climbing in particular I find can be great for making friends, or at least socializing. It was working really well for me the first 6 months after I moved to Connecticut but unfortunately I lost the motivation to climb and I sorta fell out of contact with those friends as a result.

My girlfriend uses Bumble BFF and it's worked fairly well for her.

I realize that my suggestions may be more tuned for folks in their early-mid 20s , but maybe they can help you.