Icons8 Background Remover - Quickly remove the background from any photo
Lumy - Helps you track photographic times
remove.bg - Remove the background of any image 100% automatically
Alpenglow - Never miss a incredible looking sunrise or sunset again
ClippingMagic.com - Remove image backgrounds online. Make backgrounds transparent, white, etc. Edit, crop, rotate, fix colors, add shadows, all you need for great photos!
SunCalc - Find out where the sun will be at any time in any location