Twitch giveaway?

I started with Twitch and wanted to do a giveaway.

Wanted to raffle 100 euro when I reached 100 followers.

I use obs studio and unfortunately I don't find anything. Just any giveaways with points.

Would like to have something where, as soon as I reach the hundred, a random is selected and I can simply send it to.

I would appreciate an answer

With TipeeeStream you can see the donations and if you have reached 100 euro you use a ChatBot that randomly selects someone.