Calnos mentioned it but I wanted to offer links to the RP campaigns. I have been apart of all of these campaigns and I can say for a fact that great people both host and attend these campaigns. If you like Night Elves there is also the Helping Hands Campaign as well.
Helping Hands: [N-RP] Helping Hands: New Paths | Open, Public Campaign | Weekly Events | Central Kalimdor
Ascension: [N-RP] Ascension: The Dreaming Spider | Thurdays 5:00 PM | Suramar
Year of the Scourge Epilogue: [Year 36 Campaign] Happy Dragonflight Launch Day!
There is also a guild faire for Horde.
Link here: [H-Event] Calling All Guild Recruiters and Seekers! 04.24.22@5pm
And Silver Circle is having their Byltan Festival in May.
Link Here: [RP Event] Byltan Festival 2022 [Complete] - #9 by Huwah-wyrmrest-accord
And there is a monthly Story Telling event that is neutral. That is tonight in fact. Link here: [A/N] Kalimdor United Monthly Storytelling Event!
And as for some weekly events there is Mulgore Mondays and Story Circle. Taking place in Thunder Bluff, my guild offers free food and company. As for Story Circle that is a tradition going back many many years that we kept going.
Story Circle: [N-RP Event] The Bloodhoof Story Circle
Mulgore Mondays: [H] Mulgore Mondays!