Don't forget the option of going to your county's Health Department Clinic.
I went with my mom to get her flu shot at the pharmacy and although it was fine, she had to wait a long time due to all the other people there to get their shots. It was a little bit of mayhem because they were also dealing with people just there to pick up prescriptions, etc.
I had a great pediatrician, but I took my kids to the Health Department for their vaccines. I didn't have to pay for the visit and after my divorce, on the sliding scale, the shots were free.
It's worth checking into.
If you have insurance that will pay for the shots, check with your insurance carrier first to see if there is a preference as far as who and how they will pay.
Best wishes.