Well depending on what kind of person your character is there are numerous merc, military, and Alliance/Neutral guilds that would gladly take another night elf. If you’re more interested in kaldorei-themed RP I will link a few recruitment posts below.
There’s also Nar Ethella which I’ve heard is a good one but they don’t seem to have a recruitment post that I can find. Ermragon is normally the one that pops into these types of threads mentioning his guild.
Good luck! It might help others help you find a guild if we know more about your character. Like personality, motivations, a little light history something that a reader can get a feel for and make a more tailored reply!