Why Is Keeping A Dog Prohibited?
In that forum, Hassan Ilyas sb has reviewed ahadees about Dogs. Listen to that for clearing misconceptions about hadith. About keeping pets, if u can ensure there will be no filth due to animal or u properly clean then you can keep the pet as mentioned by Faisal sb response in that thread.
Why do you expect anything in Islam to explicitly favor keeping pet dogs. There have been some misconceptions in this regard and the videos in the above post attempt to clarify them. Otherwise like many other things, this is not a subject of religion.