Odysee and Dailymotion seem to be very fine and can use more creators. They work with a VPN and inside of Grayjay.

For Youtube I switched back to Newpipe which funny enough works very fine, while Grayjay simply doesnt. I like having all platforms in one player, but Grayjay has many issues

• no export in newpipe compatible format (lock-in)
• no direct outside-the-app downloads into normal usable containers
• not free software