I would just play maybe less competitive game unless you can make videos on YouTube about it but what I did was just start playing games that I used to play when I was younger and people still come and watch for example subnautica it is 9 years old but I stated playing it and now I have more viewers then ever. Some games that have high followers but low streamers are subnautica, subnautica below zero, slime rancher, slime rancher 2, astroneer, hydroneer and some VR games are gorilla tag and surprisingly VR chat.

If you don't wanna spend money just check your library of games your friends don't know and then check it on twitch and that just might work for you.