Access to legacy lens and camera profiles

I have tens of thousands of photos shot with older cameras- mainly Sony A100, A700, and A850, with a mix of Minolta, Sony, and some third-party lenses. I'm on Mac, with Lightroom Classic 15.1.1.

I'm wondering how I can find and load what must have once been available, the older matching profiles for my Sony gear? I can't be the only only one with these older RAW files. I started RAW processing with Bridge CS3, then switched to Aperture until it was discontinued, and didn't use Lightroom until after that.

My current Canon cameras and lenses are well-supported with Camera Neutral (what I prefer to use) and lens profiles, but the older gear is barely supported. No camera profiles and few Sony/Minolta lens profiles.

If I open an ARW file that I had previously edited, the profile will be something like "ACR 4.3", even if I change the process to current. But everything else defaults to the dreadful Adobe Color profile. Adobe Neutral is bad too, it looks like ungraded video footage TBH. I've been looking through old shoots and just getting decent edit settings has been a challenge.