Your Urologist will likely recommend an MRI and maybe a biopsy. But don't let that scare you.
Understand that prostate cancer (PCa) is generally slow-growing -- especially low-grade & favorable intermediate-grade PCa.
That is, you probably have time (maybe a lot of time) to research your options.
My Suggestions:
1. Talk with your Urologist about tests he recommends.
2. Don't rush to biopsy -- decide AFTER getting a multiparametric MRI, preferably from a Center of Excellence.
3. Before getting a biopsy, consider getting a PSMA PET/CT body scan. You're injected with a radioactive dye that identifies PCa. (An example is the brightly-lit middle image below.) PSMA PET scan is especially useful identifying PCa sites if you have spread outside the prostate.
4. Old-school biopsies randomly sample areas of the prostate and can miss tumors, especially early-stage small tumors. Instead, get a targeted biopsy (aka MRI-Ultrasound Fusion biopsy), which combines (fuses) your mpMRI with real-time ultrasound images. This allows your Urologist to target your biopsies to areas-of-interest in your prostate. Other areas in the prostate can be randomly sampled as well.
5. Research, research, research. Early on, I found this video helpful:
This video (and others) are extremely helpful in describing the complexity of this disease. Research as you say is key. Thank you.