Your best bet is for your guild to wait until Monday at 1pm Eastern when they release 4 new realms. Everyone make the jump at that time to a fresh server.
2019-08-26T17:00:00Z (UTC), we removed the limitation on only creating a total of three WoW Classic characters per WoW account. Now, players will be able to create up to 10 characters per Classic realm, for a total of 50 characters across all Classic realms per WoW account.
Additionally, at 2019-08-26T17:00:00Z (UTC), we opened the following new realms in this region:
Name
Type
Timezone
Incendius
PvP
Eastern
Bigglesworth
PvP
Pacific
Old Blanchy
Normal
Pacific
Westfall
Normal
East…