Anything new will attract viewers, such as Borderlands 3, the new Call of Duty, or any new game
Grand Theft Auto, Human Fall Flat, and Minecraft are all good games for having a goal in for the video
Lately I've been playing modern warfare, siege, overwatch, and vigor, but idk what games you're into
I would choose games which best compliment your personality; something that would elicit your best reactions and responses or allow for your best story telling and audience interactions. I don't know what games that would be because you know your own personality the best, but a great (very general) rule of thumb is anything that you're excited to play, your audience will be excited to watch.