Just love the technology.
Don't forget to fathom in the cost for going commercial. In the UK it's £1,000 Permissions for Commercial Operations
I would go with either of these two. https://youtu.be/Ojt4eCC9B8E
Just fix it in post.
Next time hack your Canon with the Magic Lantern hack. There is a setting in there that will give you a clean HDMI output.
I seem to remember a guy who swore by an "I rig pre" with his Tascam.
I have the Sony PXW X70 which can stream to Ustream via mobile phone. I have also figured out a way to stream to YouTube using Android VLC and Screen Stream Mirror. Other than that any good camera with clean HDMI out can stream to a computer using HDMI / USB converter and any appropriate software such as Wirecast, Xsplit and many others.