This will be adventure modules and other official content to be purchased. Hopefully with all the bells and whistles you can have in Foundry.
Not sure if there is a big market, as most foundry users are comfortable putting the scenes together already.
why are all of the 48" tv screens bigger than my 32" bedside table?
When I start I have a session zero with my expectations. If you cross those, I just drop you from the table. I don't have murder hobos because I don't let them murder. If they try I let them go. Only takes one to test that and then your game plays smooth. They know how I want to play and if they aren't happy with it, they can run their own game.
There are a ton of Facebook groups too for finding online games. Although most use discord rather than zoom/Google meet. I run games on Discord using various vtts such as foundry and tabletop simulator. There's a lot to pick from.