Sluban Military Air Force Weapon Sukhoi Su-27 Su-57 Flanker Fighter Building Blocks Kit Bricks Ww2 Classic Model Toys Boys Gift - Blocks - AliExpress
A decent SU-57 : r/buildingblocks
Su-57 Felon – BuildaMOC
Amazon.com: Yegan Sukhoi Su-57 Fighter Bricks Model, Compatible with Lego, MOC Aircraft Plane Aeroplane Construction Collection Challenge Building Toy, MOC-125117 (1,907 Pieces)
Amazon.com: DAHONPA Su-57 Fighter Military Army Airplane Building Bricks Set with Figure, 893 Pieces Air-Force Build Blocks Toy, Gift for Kid and Adult.