Canon Speedlite EL5 - Speedlite Flash - Canon Europe
Amazon.com : GODOX TT685II-C Flash for Canon Speedlight Camera Flash E-TTL Speedlite High-Speed Sync, 2.4G Wireless X System Compatible for Canon Flash 5D Mark IV 6D Mark II 7D 90D 250D R5
Canon EF 50mm f/1.8 STM Lens + Speedlite EL-100 Creative
Canon DSLR Tutorial - Using flash in auto mode - YouTube
Amazon.com : PLOTURE Flash Light with LCD Display Adapter Rings and Flash Diff-Users Works with Canon Nikon and Other DSLR Cameras : Electronics