I’ve been using VMIX lately with a blackmagic quad card in the computer. I’ve been doing a live streaming show with several cameras, audio, commercials, graphics and etc. and I can do this by myself. The app has a web interface which allows you to have macros set and utilize an ipad or tablet to fire off your commands. For example I have a command to goto commercial, one for dissolve back into camera, and stuff like that.
The support isn’t great but the manual does help figure things out. For the money its not too bad. Plus it has the NDI interface so many are going with these days.
Word of warning on the titler though, I don’t like it and it needs help. Most of the time I just create what I need in photoshop and run titles that way.