Nice list you got here with many different alternatives.

Just want to mention some that you didn't put on the list if people are interested what's out there.

Vidlii which is a clone of how YouTube look liked in 2008 and has a small but dedicated communtiy around it.

TheVlogs which is a site focusing on the vloggers that want to be able to speak their mind.

I have my sort list here if anyone interested:
https://steemit.com/dtube/@anderssinho/youtube-alternatives-diversify-and-backup-your-content

Hope you do a follow up in the future and see what's happens with each platform.
Upvote the post, even dough I see it's older than 7 days :/