I think the only folks close to being able to jump on right away would be OANN as far as visual. Oann would get a huge boost if Hannity and Judge J joined them.
Salem network will continue as they are I’m sure...though I suppose they could go hard video as well. Their stock pays a hefty dividend so they could afford to invest part of that into video if they wanted to grow.
I just wish someone would invest some money in OAN. Their output reminds me of a HS audio visual club. They're hard to watch even though I like what they report.