I will pick up some rookies opportunistically. It sometimes pays off (Trout) and sometimes doesn't (Cano). I also bust packs and boxes occasionally if I like the set. Besides the 2020 Heritage (1971 Topps, which I love) the only one I've really done much with is 2019 Topps, which I think is a really nice design. I bought and busted a lot of Walgreens retail boxes for the yellow bordered inserts. Base modern cards are basically a waste of money compared to the box break costs but are very attractive cards:
2020 Heritage Trout cards (L-R: action variation, purple bordered refractor, base card)
2020 Heritage Greatest Moments (hobby box topper) Bryce Harper:
2020 Topps Heritage Super (hobby box topper) Ohtani:
2019 Topps Kershaw Holiday variation:
2002 Donruss DK Originals Jeter:
2016 Topps Now Ichiro:
2014 Panini Golden Age Bad News Bears:
Topps Project 2020 cards: