Guide to ID your ants or queens

Identifying the queens you gather may be a hard task.
Here are two websites I use :

https://antmaps.org/
list of species by country

http://antsmania.com/fourmis.php
Even if it's made for French species, this website can help anyone to understand how to ID ants. Showing keys (such as petiole) and sizes.

And of course, the discord may be a really good use :
https://discord.gg/antkeeping

It has nice charts such as this one :
https://media.discordapp.net/attachments/1007328559729213450/1007329762177454131/AntPicnic_key04_v01.png?width=1670&height=1088