We have 3 dogs. Is there a way to select only the houses where a dog(s) is welcome?
And/or houses of other dog owners.
I standard hashtag with #dogowner and/or #dogwelcome
would be very helpfull and would make the search a lot easier. 
Ps: and #catowner because then we know we can’t go there 
. The current ‘pets’ on HE isn’t specific enough .
That would be very helpfull indeed. At the moment, it’s only the other way round: you can exclude homes that have a cat and/or a dog. (So when you’re searching, you can exclude homes that have cats.)
I’ve just found out that what you can od, is join groups of dog lovers. Most families who join there will have a dig of their own or at least be okay with families with dogs coming to theur homes. And you can search for an exchange with homes that are in those groups.
Yes, I have signed up for such a group, but now I can’t find the groups anywhere. 
I have to admit that I don’t find the website very user-friendly yet, but I’m sure that will come in time.
Well, I became a member yesterday, could seek through the home owners in the group, tried to do the same today and wasn’t able to either … So it’s not very straight forward. Maybe someone can help us out?