I have swollen lymph nodes in both parotid glands. Fna has r/o cancer and lymphoma. Autoimmune tests all negative, no dental infections. Now what?

See oral surgeon. You could have a small blockage in a duct causing the saliva to build up in the gland. See an oral surgeon for evaluation.
Talk to your docs. Close clinical follow up for a change over time may be appropriate. If there is more of a concern an excisional biopsy would be more definitive.