There are quite a few Discord servers that host Adventurers League games.
These Discord servers have been grouped to help you find games for your local time zones.
Join the The Adventurer Leagues Discord Server!
Join the Unite the Factions! Discord Server!
Join the Baldman Games Community Server Discord Server!
(Note that Baldman Games has officially stopped running AL games. They still allow DMs to run AL games at the VDDW events)
Join the Triden Games D&D Discord Server!
Join the D&D AL Nordic Discord Server!
Join the Players Helping Players Discord Server!
If you know of any Discord servers host online AL games, please let me know.