Unsure on the creator side of things, but besides PeerTube, which uses ActivityPub like Lemmy/Mbin/PieFed, looking at Grayjay’s sources list, there are some others, like Rumble, Odysee, BiliBili (Chinese), Nico Nico (Japanese), Dailymotion and Bitchute. Maybe a start to check?
Unsure on the creator side of things, but besides PeerTube, which uses ActivityPub like Lemmy/Mbin/PieFed, looking at Grayjay’s sources list, there are some others, like Rumble, Odysee, BiliBili (Chinese), Nico Nico (Japanese), Dailymotion and Bitchute. Maybe a start to check?