Hello! And potentially welcome back!
You’ll find a few guild-recruitment threads here on the forums if you scroll a little, but there are also plenty of guilds active in-game that don’t recruit here. If you have Discord, you may have some luck looking around in the Wyrmrest Community Project server, which is not Alliance-exclusive but is Alliance-focused.
For meeting people in-game, it sounds like the place to go right now for Alliance (and some cross-faction) RP is Duskwood. I’m not sure what the peak timeframes are, but if you ask in Thomas Bate’s Duskwood Thread (or in the WCP Discord, most likely), Thomas or another regular can probably tell you. For reference, WrA is on Pacific Time, so your 6-10pm EST range would be 3-7pm server time.
Good luck!