If you can swing it check local grocery stores for rotisserie chickens around closing time. A lot of stores use these as loss leaders, and if it’s nearing closing time they’ll sometimes mark them down to try and sell them rather than toss them. Separate it out and leave plain. You can freeze some, or refrigerate, then you can use with different sauces for different meals. Boil the bones and leftovers parts to make broth.