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.

North America

Join the The Adventurer Leagues Discord Server!

Join the Unite the Factions! Discord Server!

Join the Baldman Games Community Server Discord Server!

Europe

Join the Triden Games D&D Discord Server!

Join the D&D AL Nordic Discord Server!

APAC

If you know any that have online AL games, please let me know.