These are the small packs given away with LEGO City Magazine, which is made by Blue Ocean, the Stuttgart publisher of LEGO's magazines, and started in 2017 with 951701 Policeman and Crook. Most hold one minifigure with something to build, a police officer on a jet pack, a diver with a shark, an astronaut with a satellite or a builder with a road roller.
2018 LEGO Sets
2018 celebrated the brick’s 60th anniversary and the minifigure’s 40th. The Wizarding World returned after a long hiatus, spanning Harry Potter and Fantastic Beasts. New themes included Jurassic World: Fallen Kingdom, Unikitty!, The Powerpuff Girls, and the first wave of Overwatch, while Star Wars covered Solo-era releases. Toys-to-life title LEGO Dimensions had wrapped, and Nexo Knights ended around this time.