I found Gab [0] to be quite a viable alternative to Twitter due to its decentralised nature thanks to Mastodon so that downtimes like this cannot happen on the platform.
[0] - https://gab.ai
[0] - https://gab.ai
Gab isn't what everyone makes it out to be, they were told to build their own alternative and built it. It's even better that it's using Mastodon's stack to build their own decentralised social network.
Gab, Mastodon and others like it are future of social networks. Centralisation is evil.