Gyosha Mall on Gyosha Ophin
Portals at PS Gyosha, Ultima Gyosha, PS Biitula (Gyosha City Portal behind Lamblis portal), TNT, DK Mall, Icon, etc.
Buy, sell, live, craft, be merry 
I’ve been taking a step back from the mall, since it’s usually 100% full & operating like it’s own little city now. There is a discord, but the best way to contact me is here on the forums or via Twitter.
Available shop spaces usually have a mailbox near the door + signs with info on how to contact the owner to get the space. Players beacon/control their own spaces.
*4th Street