Please direct your friends to joinmastodon.org or another instance of your choice like octodon.social, toot.cat or toot.cafe, etc. mastodon.social is "default" choice for a lot of people and it's getting kinda hammered right now.
@Gargron is there a more artistic/creatives space English instance?
The search wasn't helping me narrow down much
@DanHawk Mastodon.art is closed to sign ups by default to keep bots out, but I can send you an invite link as a member. It's a great instance and community :) Let me know.