The best major for you is the major that you enjoy and will be successful in regards to getting competitive grades for PA school. As long as you take the PA school pre-req courses, you can do any major and concentration you wish.
I think you will have a better shot at SFSU than USF but definitely apply to both along with a few more Cal states along with UOP and USD. The GPA posted is that weighted or unweighted? Have you calculated your CSU/UC Capped Weighted GPA? https://rogerhub.com/gpa-calculator-uc/
What is your local in-service area CSU since you get priority as a local, make sure you use this school as a backup?