Archive.org still exists and still has DMCA immunity*, you can get no-intro, goodset & redump sets on there. There is a gap in PC game ISOs currently though afaik, but steam and gog do seem to be good for covering most releases
Failing legal options, those sets will be available forever via BitTorrent
*If you're in the US, please make sure your representative knows how important it is this continues—well, unless they're a republican, in which case, probably better they stay oblivious if they don't already know.