Instances list is taken from instances.social.

Be aware that some websites are NSFW!

Alexa top 1M

The number in parentheses is Alexa rank.

• pawoo.net (18434)
• switter.at (53689)
• mstdn.jp (69517)
• humblr.social (82525)
• puri.sm (98927)
• dajiaweibo.com (101756)
• baraag.net (107513)
• eigadon.net (114019)
• peertube.video (132430)
• id.cc (196860)
• mstdn.guru (199356)
• mastodon.social (218187)
• aaronparecki.com (235251)
• artalley.porn (321294)
• imaginair.es (327886)
• mamot.fr (328168)
• octodon.social (402164)
• framapiaf.org (410234)
• mastodon.xyz (458761)
• ruby.social (485747)
• masthead.social (498430)
• todon.nl (504739)
• kinky.business (513003)
• librem.one (518558)
• catgirl.science (630489)
• nerdica.net (640454)
• nulled.red (666098)
• sleeping.town (667999)
• walkaway.space (669846)
• abdl.link (676626)
• chaos.social (707822)
• maxlaumeister.com (740222)
• infosec.exchange (752333)
• dentrassi.de (826598)
• nul.tokyo (921535)
• adult-game.dev (923585)
• berries.space (944243)
• chitter.xyz (952032)
• dragon.style (961013)
• fuckonthefirst.date (969565)
• mastodon.host (991477)

The rest

Moved to https://gist.github.com/pipboy96/bde9ff68b8427fdcc9790b17b164cf89.