I'm generally a set collector, but I only work on the sets when I like the design of the card. In addition to the base set
I look for parallel sets like Rainbow Foil, Gold Numbered, and Numbered Color Parallels:
My Favorites are:
Topps Series 1, Series 2, Update
Topps Chrome:
Topps Tribute
I am working toward sets of 2013 Topps Tribute Blue/99 (Need 2), Green/75(Need 7), Orange/50 (Need 15 cards) and Gold/25 (Need 58)
I love the 2019 Topps Card design, and have Topps Base Set (complete), Topps Chrome Sapphire base (Need 4 cards), Topps Chrome complete base set, complete refractor set, complete pink set, complete sepia set, complete prism set, x-fractor set (need Tatis), Negative Refractor set (need three cards)