Kittens and control pet population

There is no doubt about it, I am a crazy cat lady. My yard has been a safe space for cats and 3 feral mama's brought us their combined 3 litters of kittens. We started with 17 kittens and have successfully found loving homes for 4 and are down to 13 kittens. We have spayed all mama cats and are working towards TNR the neighborhood population. Any help supporting this cause to get these little bundles of joy into loving homes is appreciated!