There doesn’t seem to be an organized community for people who still play Reach on console, so I’m hoping to make one. It’s coming to Steam eventually, but nothing compares to the classic casual Xbox party. Also, years of Forge maps and custom games. And yes, 360 and One users can play together.
I made a Discord for people who want to relive the glory days: Rember Reach
(Not sure if this goes here or recruitment sorry, but I don’t figure many people use that for Reach nowadays)