Battle for Azeroth Private Server of Firestorm. The realm of their BFA server is called Sethraliss, and launched in March 2019. The server (Firestorm) has a reputation of having a lot of realms running.

Their most popular realm is the BFA realm (Sethraliss). The population is typically between 1500-3000.
The BFA realm is running on 3X XP Rate, and is a PvE Server.
Shop: They offer Vanity Gear, Levels, Gold, Characters.

If you would like to play and experience BFA, then the realm from Firestorm (Sethraliss) could be a very good choice.

You can get started on their website, here:
https://firestorm-servers.com/