Some still have the WoW heyday raid guild mentality, but there are plenty of large, casual guilds without the expectation of specific days, hours, taxes, “must login at least twice a week”, and such stuff.

Happy to recommend one to you. They have opt in sections in their Discord for PvE, WvW, PvP, etc, etc. And have an “all members welcome” Guild Missions session every Saturday, which is an effective way to meet and catch up with everyone.

And having access to a guild’s hall is great for cheap travel, extra resources, permanent boosts, crafting, etc.