Hi Eraellor!
There are a couple of arcane focused guilds to look at.
Grand Circle of Mages is a guild built on supporting established lore for the mage-rp community. They are an Alliance aligned guild. You can check out more information about them here: [A-RP] Grand Circle of Mages • The King's Magi and Arcane Knights in service to the Crown and Alliance
Then, of course, I will shout out my own guild, haha! We are a community & guild focused on magical artifacts and neutralizing dangerous magical threats. We are neutral aligned. You don’t need to join the guild to participate in our storylines by any means. We have a contractor role in our discord that allows you to see anything a member wearing the guild tag would see.
If you want to read more about us then check us out here or contact me in-game / over Discord! [A-RP] ☾ ●— The Arcanum —● ☽