Like with everything, you'll need to have content created or even scheduled for it to properly take off.
To be honest a lot of people like tutorials, webcomic making process or voice overs.
Some others do time-lapses or speedpaintings of certain panels
Then you have others who hire voice actors to narrate the comic, basically having a video version of it.
In video format, while I don't do it now due to time and feeling a bit quite tired:
- Streaming the IRL time process with a multistream platform helps, as well you can engage with people which caughts their attention (I used to stream in YT and Twitch at the same time, then Picarto for NSFW stuff)
- Saved the VODs on Youtube and kept them as exclusive content in Ko-Fi for supporters to revisit.
- Used fragments of the VODs to create speedpaintings, Shorts or TikTok videos.