Most folks would agree that due to prohibition and (what we now know as the beginning of the Cookies-era aka the exotic-hybrid-era) the genetic pool has been stressed in cannabis. Namely, it has been optimized by black market growers with trivial understanding of cannabis, chasing THC only. In this time most would agree we lost our true skunks/roadkill/cat piss buds. I know exactly what you're talking about. Chasing that original dank/skunk is what has led me to procuring every Irene cut and seed I've ever come across, as I've spent quite some time in the South with THE real one. I've used cannabis for decades and hands-down the firest and hardest hitting flower I've ever had in my life was 11% THC licensed cut of Pink RuntZ at 5% terpenes and a smothering of other cannabinoids. Fact of the matter is, that is gonna get you more medicated than a gram of THC straight to the veins would.....
Not sure what to tell you, there are many of us in your shoes. I personally wouldn't throw the Cookies-era a life preserver if it fell overboard.
Some things in my circles I hear about a lot on this topic are dogshit (search dogshit csi humboldt), the real duck confit (she no longer has it IIRC so good luck finding someone trustworthy with it), and I've even heard of Badu (from cookies) hitting those notes. There are old heads doing research in this area and they are finding some crazy stuff. For example, same cultivar two phenos displaying congruent terpene profiles, yet having distinct smells! What they've been seeing is a lot of the older skunk smells are in fact dead, dead because of low-education in this space and people chasing terpenes themselves rather than esters and alcohols (where the skunk is from mostly).
Just stay tuned. Most of the old heads are on this exact same problem right now. Throw out the last 20 years of seeds and lets get the good dank back, half the stuff at the dispos these days hits like air. zzz