Hi! Has anyone here experienced male infertility or been diagnosed with a low sperm count?

What was your experience like, and would you recommend any doctors or specialists? My wife and I have been trying to conceive for a while now. She's already gone through all the necessary tests and evaluations on her side, so we're now looking into whether there could be an issue on mine. We'd really appreciate hearing from anyone who has gone through something similar, especially if you found a doctor who was helpful or if there were treatments that made a difference. Thank you in advance for any recommendations or advice.