@tiredofthisshit21, it really is all very hard at the moment to do it right.
I don't think posters claiming that all breeders are evil, and that any buyer who doesn't rescue is clearly going to hell (bonus points for foreign dogs) help matters at all, but hey ho. I suspect if anything their rants just send buyers in the opposite direction, to just buy a nice puppy that's in front of them, when they have seen numerous friends do it and end up with nice family dogs.
Focus on what kind of dog works for your family, educate yourself on how to avoid the obvious puppy farms and on the scams that others pull to try and get past buyers who now know the major things to avoid.
Accepting that no advertising medium is perfect, and it is human nature that some people can still pull the wool over our eyes - I think Champdogs and breed clubs are probably still the best way for the uninitiated. Yes, this excludes chosen crossbreeds, but honestly the majority of breeders of crossbreeds SHOULD be avoided, so perhaps it's no bad thing to go for the relative certainty of a breed. It is also true that you shouldn't buy a cross of two breeds if you don't like the breeds they are made from - so far better buy a properly bred pedigree of one of them.
Champdogs does at least insist on a level of health testing, and to some extent you can see their history.
For what it's worth, although we may not have knowledge of specific breeds, I am sure there are plenty of posters here that you could send a link to an advert and they would tell you whether it looks OK on the surface, or to not touch with a bargepole.
For those who say that no reputable breeders advertise on Pets4Homes, that is not specifically true - and to be honest, there is a good argument that more decent breeders SHOULD advertise there and make it obvious in their adverts why their pups are better (and not always more expensive either).
It's also not true that good breeders never have puppies to advertise either - many people on waiting lists buy elsewhere without ever informing the breeder, litters often have the wrong balance of sex/colour for the buyers waiting. I have personally just bought a (long researched) puppy of a numerically small breed that I thought I would have to wait a year or two for, but got lucky phoning the right breeder at the right time.