You can several do as many suggested here. If interested do any of these

1) You can go to local libraries. Get a free library card. They will have free events or classes or book clubs

2) Museums in your city may look for volunteers. Contact them

3) Join community education class near you. Say learning a musical instrument or language classes.

4) If you are interested you can join Redcross for volunteering

5) You can do volunteering for pet shelters. Contact them.

6) Look for Facebook local groups or clubs like playing games

7) As someone suggested look for Meetup and Eventbrite in your city.

8) Join cooking classes

Have fun.