Low and slow is the trick. Fourteen hours in a slowcooker is good, just add a few veg, a cup of liquid, and cubed breast meat, spices,thicken with a rue and serve with rice or noodles. Guaranteed to come out tender.
Dice the meat and make a soup.
Cut meat real thin, thread on bamboo skewers and BBQ.
Try smoking them also.
Sometimes I grind up the meat and make goose burgers for something different too.
Just a few ideas.

Ron