Found some bootleg Nexo Knights sets on Amazon that have original builds : r/NexoKnights
LEGO NEXO KNIGHTS Build Your Own Adventure: D.K. Publishing, Simon Hugo: 9780241283653: Amazon.com: Books
Amazon.com: LEGO Nexo Knights: Season 2 (DVD) : Torsten Jacobsen, Ole Holm Christensen, Lotte Kronborg, Alessandro Juliani, Ian Hanlin, Brian Drummond, Vincent Tong, Mark Oliver, Michael Adamthwaite, Jennifer Hayward, Garry Chalk: Movies
Amazon.com: LEGO Nexo Knights The Heligoyle 70353 Building Kit (318 Piece) : Toys & Games
Amazon.com: LEGO Nexo Knights 70322 Axl's Tower Carrier Building Kit (670 Piece) : Toys & Games