Probably active surveillance. ISOPSA barely indicated cancer. You PSA is not very high especially if > 65. PIRAD2 is benign 80% of the time. Unless your PSA was under 3 a year ago and is rapidly rising why do another biopsy? All prostate cancer treatments have negative side effects that will lower your quality of life so why rush into treatment? You could get a second opinion on your biopsy to see if it is upgraded. If your PSA continues to increase than get another mpMRI and see if a targeted biopsy is warranted. Were there any notes in the biopsy report that indicated an aggressive cancer?