I am not sure if there are any Forums like this but here is the idea,
If you have a stable or pets up for breeding and want to get them out there for those looking to Breed, post a link to your stable along with which box is your breeders (if not labeled). That's it! Then those looking for potential breeders can scan threw the different options, and prices to find that perfect match for there breeding projects!

it could look something like this:

My breeding box: https://www.sylestia.com/stables/
Tab: 2

[insert witty sales bit about why your pets are the best and what you have to offer ;) ]

what ever strikes your fancy to get the word out about your pets:
Hope everyone stays sweet!

I'll give it a try Cupcake

My breeding box https://www.sylestia.com/stables/ Tab: 2 labeled breeder

Highlights: I have a few spring festival themed pets for breeding, and pure offspring for breeding as well. amongst other pets who are awesome.

pleasure doing business with you Earthday.

Link: https://www.sylestia.com/forums/?thread=37258&page=1#3 Author: Cupcakegirl Time Posted: 7/2/2016 at 2:50 PM pleasure doing business with you Earthday.

And to you as well,

Alot of mine are open for breeding as well ^^

Are your breeders in a stall? or do you prefer requests on yours?

All of my pets are 1g to breed with :)))