What's a good facecam for streaming on Twitch for 50 euro or less?

I want to get a Facecam for streaming, because I need one for skype calls, etc. Now and I thought you can find very good offers at black friday because I don't know how smooth 30/60 fps are with such a cam that's why it really doesn't have to be good, I'll barely move while gaming anyway ahha, you should be able to see something

Since you can take any 720p can. Logitech C920 or 260 I think.