snort, amethyst, rabbit, nostter and astraea have emoji support

The best rn is

https://nostter.vercel.app

Because it supports

https://emojis-iota.vercel.app

For adding emoji packs

Astraea adds a picker to the regular emoji picker, so you don’t need to know the name, they have search so you can start typing after the semicolon to find an emoji… I prefer this but you do have to manually add your sets of emoji. Hopefully emoji iota will add editing the :name: I like setting :gm: to the : Ohayō: emoji so in plain text it reads as gm for example.