XL vs L-Motor (LEGO® Technic Powered Up) - YouTube
LEGO 9V Technic Motors compared characteristics
Amazon.com: Mingkai Power Functions L-Motor 88004, Servo Motor Compatible for Lego 88004 Steering Motor Function Power Function Accessories, Grey : Toys & Games
Alternative LEGO L Motor - Mould King - Technic Briks
Amazon.com: NIIZ Power Functions Motor Set Compatible with Lego, 8 Pieces Science and Technology Motor Power Function Kit, Including 5 Motors (L/Servo/M) Power Pack, Adjustable APP and Remote Control Set : Toys