@The_Dyer_Consequences You'll notice that a few of the games which I have brought up are playable solo or with small groups. In fact, pretty much everything I've put on the table is best with at most three or four people. There's no reason not to take fewer, quite frankly.
Ironsworn you can play alone.
The important thing is to play. Everything else is at best tertiary. The more you play, the more you find things that you want to be enthusiastic about and share with other people as part of your relationship with them, and that is how you find other people who want to play with you.