What are reception age boys collecting? Blind bags etc

[AmazingFamily]

When my ds was young there were only lego minifigures but now there seem to be loads of collectible little figures. I’ve seen shopkins mentioned, but what other things are there?

Mine likes Super Zings/Super Things. Also picked up a 'power pux' bag in the Entertainer, hadn't heard of this but sounds fun. You can also get Playmobil figure blind bags.