I'm still holding/running a couple of clone onlys I've relied upon medically for the better part of a decade now: Bruce Banner #3 & Gorilla Glue #4. I've run some seeds in recent years, but mostly of my own creation: NASA Bruce & NASA Glue.
I had been thinking recently that I have not played with or experienced any European genetics in quite some time now. Specifically recalling Milo Yung's (aka Big Buddha) Cheese of the early 2000s. Definitely still solidly in my top 10 ever. That said, I recently pulled the trigger on my first ever overseas seed order and expect them to land any day now. I ordered some of his Cheese, Blue Cheese and new California Orange Cheese to give a go. Sadly they are all feminized, as I guess there has been no regular seeds from him in the past 15 years. I have avoided feminized seeds up until now and I'm a bit concerned about stability issues to be honest.
If you are looking for live genetics, I believe Genotype A2 is still open on the weekends in Ann Arbor and maybe by appointment during the week:
https://genotypea2.wixsite.com/website I have not been down there in years, but the fact they are still in operation says something ...