You can use any file host that supports the raw link and plug it into flare. (I use yakihonne for this since I can also hotlink thumbnails). My friend hosts a peertube so I use that personally . If that goes down I can put them on a file server and edit the videos on flare to change the file links. 

 Mmhh, very interesting option 🙏 I'll have a closer look ... also that yakihonne offers file hosting, and flare can play that role, I wasn't aware. Thanks!!