This is a decent article.
There used to be a site that had a comparison of a dozen different certs, their cost, their renewal, etc. but I can’t find it. I’m guessing they stopped updating it so it dropped in the google rankings.
NASM is top notch, as is ACSM. I’ve read the NASM book cover to cover and its OPT model of assessment and programming is a thing of beauty. I know ACSM is well respected but I haven’t read their book.
Another PT cert that I think is fantastic is PTA Global. I have attended workshops by several of the people who designed the PTA Global cert and they’re talented practitioners as well as presenters.
I have ACE and have had it since 2009. It’s been a good certification, and my job opportunities have been plentiful. If I had it to do over again, I’d do NASM or stick with ACE. I was 2 weeks from my NASM exam when I got a job that needed my attention. I’m glad I took the job but I regret not sitting for NASM after all the prep time I invested.