Urriak Uruk
Gaming is fun, and fun is for everyone
The OP said Forgotten Realms. Almost every post is reply has taken that to mean Sword Coast instead of FR in general.
Earlier in the thread I posted links to 3 well developed and backed non-FR worlds with extensive adventure support. Unless you insist on WoTC only (Adventurers' League ...), then there are a lot of other options.
I think the OP is explicitly insisting on WoTC only.