Hi there! Violet Vanguard might have what you’re looking for. We are a cross-faction guild (same name on WrA-H and MG-A) with a welcoming, easy-going roster of players interested in PvE and RP.
Here’s our form post: [H/A RP-PVE] Violet Vanguard Recruiting for Dragonflight! - Wyrmrest Accord - World of Warcraft Forums (blizzard.com)
Hope you find the guild for you!