Welcome back! We have a large (1800+) roleplay networking server these days to help you find your people. Come check it out at: Wyrmrest Community Project (WCP) Discord | https://wrawcp.info/ | https://discord.gg/wrawcp.
Also, for blood elf-specific stuff, check out these places:
Wayfarer’s Rest: https://discord.gg/zTrh5aFv
Crimson Sun Conclave: https://discord.gg/aNH8Rrw4
Society Circle (MG and WrA Events): https://discord.gg/Eb4dtvyj
This is in no way a complete list and I imagine given the trailer release today that we’ll be getting more belf-related community efforts in the coming weeks and months.