Here's a group you can join here that plays just such games, when you're a member, just go into the notes, and say that you are looking for a 90/30 game and then go to live and create the seek. http://www.chess.com/groups/home/world-standard-time-control-chess-club-365-days-a-year
You can open another browser window to keep refreshing the notes, as someone might ask a question in there like what rating range are you looking for, or maybe how about 60/0, since they may not have quite ehough time for a 90/30 game.
Is anyone here available for play long standard games. I mean slow games with tournament-like clock (90|30 for example).