I really encourage people to try a martial art like boxing, muay thai, or brazilian jiu jitsu once COVID lockdowns are over.
These sports are extremely effective at fighting depression and loneliness for a couple of reasons:
1. You get plenty of one-on-one interaction
2. Shared suffering really does create bonds
3. There is a lot of positive validation ("great jab!", "nice hook")
4. You will see the same people 2,3,4 times a week
5. Exercise releases endorphins
6. You will be proud of how your body changes for the better
7. You will get many compliments on your new figure
8. You will get more romantic interest (looks do matter, and doing a fun/exciting sport can be bonus points in dating)