I do not know if Dick still publishes his Variations book. He first put it out in the mid 80's, I think, and updated it for several years. It covered football and basketball as well.
But there is currently an effort underway by several people to update his work. I started a thread here in the pre 80 section with a link to it. It is available on line and free, and contributions and additions are welcomed
https://net54baseball.com/showthread.php?t=277792
Also, another poster here, brightair, has some very extensive checklists of baseball variations, although I can not recall what year he stops his listings
https://sites.google.com/site/richar...riations-lists
And Dylan, Jacksoncoupage, has some great listings for more modern cards on his Junk Wax Gems site
https://r.search.yahoo.com/_ylt=A0ge...g0yoZdh5Xhh9o-