Organized hobbies have been the key for me. Gives me a place to go, forces me to be minimally social, but can allow for multiple events so the pressure is reduced to make the most of every outing. Plus you have something else you’re enjoying. Everyone’s recommendations of sports or gaming falls right in line with this. But I have other hobbies I love like woodworking that I can find places to take classes and meet people. The other benefit is the more you do it the more you get used to be out among people again and it can be less awkward/anxiety inducing.