Some content creators that I know use Publish0x, but it's not focused on crypto. It's more like a replacement/competitor for Steemit that promises a better rate of profit distribution for readers and writers. I don't think that platform is ideal but you can try to use it.
Other than that, maybe starting your own course on Youtube or a website like Skillshare would be better.
I think Steemit users who did not like Justin Sun's takeover already moved to Hive.
HAs anyone heard of Bitclout? It is not the same thing but more like a Twitter. You sign up and do not earn anything but if people like you, they can buy your coin,,, everyone gets their own,,, and then you become more popular with every buy. People I hear say it is like how Steemit started!