dubi said:
https://www.lensrentals.com/
They email out coupons frequently and we have been happy with their products.
We have started renting every lens we want to buy just to make sure we like it.
It has proven to be worthwhile both ways:
1) we rented an expensive lens and didn't like it.
2) rented a cheaper "travel" 18-400 lens for a vacation and we were really surprised at the photo quality. We subsequently purchased it for those times that we need to pick just one lens for a trip.
We have gotten really spoiled. I have 3 camera bodies and before any outing i choose the 3 lenses that i'd like to use that day. So i basically just switch from camera to camera. I do this because most of my photography is in the dusty environment of a gun range and I will not swap lenses outdoors. I will occasionally get in the car and swap a lens but that is rare.