Met my oop Max, what should I get done?

I met my out of pocket maximum and have been catching up on todos at the doctors. What is a good preventative diagnostic or procedure etc I should try to get for free? Like a vitman shot or something more cholesterol test etc?

Diabetic, sleep apnea, chiropractor, acupuncture, physical therapy, massage, counseling, family planning, high BMI and blood pressure. 40 year old female.