Most seed banks throw in free seeds with an order, and people often dismiss them as filler. In reality freebies are frequently new releases the bank wants tested, or overstock from well regarded breeders. A thread on https://potentthcseeds.com tracks which vendors currently give which freebies and whether the included strains are worth growing on their own. Some of my best plants came from a freebie pack I nearly gave away, so it pays to look them up.