Sulo,
Welcome to RCU. It IS a great place and probably will help make your RC experience better.

The Four Star (4*) recommendation in the larger sizes is a good one. It's a low wing tail dragger that flys exceptionally well, lands more like a trainer than some trainers, yet is pretty aerobatic as well.

There are many other planes in the size you're looking for, but the 4* series is an almost sure thing for a second plane. You could also try to find one of the larger Super Sportsters, but the 40 size is most popular, or the Thunder Tiger 60 is an exceptional flyer.
Dennis-