Your best bet would be the recent-issue Railking Northern that's painted to LOOK like a Reading T1. (It's a 4-8-4 with shielded air pumps on the pilot deck, etc., but I think the boiler is based on a Santa Fe prototype.)
As others have shared, the original Lionel T-1 from 1989 is the only scale version that's really "happy" on O42. The lack of rubber tires probably helps, as the wheels can slide a bit more. It doesn't bind but it has a TON of overhang. Ask my friend who bought one and found out the hard way when it gouged the drywall next to the track the first time he backed it around the outside curve!
