Austin Show is one of the most popular channels on Twitch and he does a few different shows. The only one I've watched is Love or Host because Alexandra and Andrea have been separately on it a few times.

Love or Host is a bachelor/bachelorette type of show. There is one contestant and 10 or so candidates, everybody being a Twitch streamer. In general it's talking and every 20 minutes contestant boots somebody.

Austin moderates the show. Each 20-minute segment is usually themed, e.g. contestant asks a question for everyone, candidates each ask a question of contestant, Austin asks a question for candidates. In general the candidates are quirky and try to play it up for fun, sometimes being more of a character than normal.

Before the show each candidate chooses love or host. At the end of the show if the final candidate chose host they get the raid (last time the show had 100k viewers which is amazingly large). If the final candidate chose love then the contestant gets the raid and the two can do a Twitch date then and there or later.

It's not a serious show but it is a way for Twitch streamers to meet each other and for viewers to see other Twitch streamers. Austin is hilariously dramatic and everyone seems to have fun. Also lots of repeat candidates since it's tough to fill 10 slots every show -- it runs irregularly every couple of weeks or so.

For a tv-show like show Love or Host is pretty good for Twitch.