"Content commentator" would be more appropriate for many of them - when their streams are so reliant on other people's 'content' (gaming streams where all the f

"Content commentator" would be more appropriate for many of them - when their streams are so reliant on other people's 'content' (gaming streams where all the footage comes from a game, or discussion of TV/movies with many clips, or political pundits commenting on news stories from elsewhere)