my personal recommendation is to just start dating regular girls, warm them up to it a little and then one night after youve already finished and she still wants more.. just pull your dogs cock out and let him go to town on her. from my experience.. 4 out of 7 times it works.. every time.
otherwise.. looking on here, or perhaps in other dog friendly communities is probably your best bet.. lots of furries are a bit suspect as well. if you go where the dogs are.. youre going to find more girls who are receptive to dog love, per capita. also fetish girls, puppy players and those types are much more likely to wind up having an overlapping interests or potentially open minds.
artofzoo, beastdate (rather defunct, google it) and zoosbook are a few other places for doggy dating online.. but the numbers are very small. its sad because craigslist used to be a potential goldmine,, but no more. heh all other dating apps will pretty much block you instantly for putting your dog up for stud in a profile..
which begats the most obvious key.. If you want to find a doggy friendly girl.. you need to have a dog already. a real life, flesh and blood, intact and ready to fuck male dog. otherwise, you might as well be writing fantasy fiction or posting personals ads that read.. 'guy who wants to be a millionaire someday currently looking for a girlfriend'
final word of advice is if doggy is really something you require to have a successful relationship.. let your potential mates know about it as early as possible with some sort of discussion. if theyre turned off or instantly blacklist you.. that wasnt the right girl for you and you just saved precious lifetime.
my personal philosophy is 'my dog fucks first'.. and thats a rule I hold to with every girl I meet or date. if they want it bad enough theyll be willing to give it a try at least.. and youll never have to deal with a girl that hasnt already been fucked-out and turned into a sloppy dog cummy mess by the time its your turn agian!