The 2023 Topps Baseball Retail Factory Set Variations are one form of bonus cards found in the pre-packaged complete sets. Consisting of five cards, these are found in specially marked box sets purchased at Target, Walmart or other nonhobby spots.
The checklist covers most of the top early-season rookies not named Corbin Carroll. They come as a bonus pack of five cards, meaning the five standard base cards are also in these sets.