I don't know of any but some are easier to fly than others.
I have a modeltech SE5 that is really pretty easy to fly with an OS52 4stroke puttering away.
http://www.hobbypeople.net/review1/123680.htm
I have heard that the SIG Hog biplane was another fairly gentle bird.
http://www.hobbyhorse.com/sig_hogbipe.shtml
NOTE: I am posting these links as a reference to the airplane. I do not promote either retailer and have never bought from either one before.