I don't think there is any activity that is Pyr friendly besides carting
Lily and I do a little bit of everything; obedience, rally, agility, tracking and carting. Most of the dogs in ALL the classes we take are quite hyper and VERY food motivated.
It was very hard for me for the first few years as I had to learn the breed itself, personality of my own dog, dealing with instructors, etc. It was not easy seeing dogs that are so fast and so willing to do things and Lily could be so good one day and REALLY bad the other.
I have learned to enjoy our training and have totally different expectations from my Pyr. She really loves agility!!! And even though she is not as fast as hunting or sporting dogs she impresses people by her performances all the time now.
Rally is a great activity! It is much less stressful than obedience and is a great way to bond with pups
We are now showing in Advanced Class and I am having a REAL problem of keep Lily away from a jump
As soon as she sees it she runs away and goes over! LOL Silly dog
Anyway, don't be afraid to try it and I am sure you will enjoy it