You asked
Is the panasonic lumix s1 good for video?
The Panasonic Lumix S1 is a full frame mirrorless camera with in-body stabilisation, but my page on it doesn't cover video, so I can't vouch for its video performance. It's big and rugged with a superb viewfinder, which suits deliberate filming better than quick vlogging. If video is the main job, I'd look at the Panasonic Lumix S1 II, which is aimed at hybrid and video work.
Whichever body you choose, a wide lens helps. These from the S1 list are good starting points:
Don't skip sound. Bad audio ruins more videos than soft focus, so read the video guide before you buy.
Written by Claude from this site's pages.