I don't see any other choices other than:

1. You host it yourself. (Peer to Peer social media)
2. You pay someone else to host it for you. (Instanced social media)
3. You trade your digital freedom, privacy and political stability of your country to someone else to host it for you. (Meta, X, TikTok)

3 hasn't been working out so far and people really don't want to have to pay another subscription. So you can spend your battery life and data instead. Maybe setup the service so that other people can seed on your behalf, so you could use your own resources or pay for someone elses all in the same ecosystem.

Peertube does a similar thing, using bittorrent to share the load, but it only works while you're actively watching the video so outside of very popular videos it is usually just the instance who is providing bandwidth. By tying the data sharing directly into the primary interaction method it creates a much larger pool of peers and, eventually, once everyone stops seeding it the data stops existing.

No permanent record of everything you've ever posted, no central repository of data to be hoovered up by the AI startup who pays off the instance owner, no empowering a single person to control all of social media for their own selfish ends.