Church (or mosque or synagogue), community enrichment classes, gym, keep in touch with old friends and join their groups of friends, work, neighbors and neighborhood activity, hobby and craft groups, sport clubs, volunteering, meetup groups or other social clubs that you originally find online

My daughter is in her early 30s. She mostly maintains life long friendships even though she moved around. Her friends and groups of friends are from: high school, her undergrad program, from grad school, from every work place she had, synagogue youth group, friends of friends,, art classes she took led to friendships, volunteering, former neighbor, former roommates and housemates etc

Things they do: swimming, park, work out, yoga, biking, eat out, movies, plays, theaters, concerts, festivals, take classes together, pursue hobbies together, travel, shop, get together in each other houses.

I am in my 50s and hang out with my group of girlfriends every other week, we never get bored. No I don’t recommend daily or any regular drinking. You don’t have to drink to maintain friendships