It's a lot of work to remember to maintain another social network, we understand!
The Mastodon-Twitter Crossposter helps automate crossposting, so you can keep contact with people on both networks:
And you can customize it to post or not post certain things (like, for instance, hashtagged stuff only)!
Instagram user? Try Moa: https://moa.party/
A Mastodon instance specializing in Vocaloid, UTAU, and anything relevant to vocalsynth culture.