What should I choose between a vet doctor (that could come to my place at any time) or a vet clinic?

Suppose it depends on if the size of your pet, and how much you want to pay.
I think vet doctors probably charge more because they have to travel to get to where you are and a vet clinic you go to them so it may be cheaper (pluss they have all the stuff they need right there).
Besides price your availability to drive your dog to the vet may be something to think about, because it can be annoying sometimes if you have to drive with your pet licking your face and slobering everywhere, while you're on the highway.

Thank you for the answer. I was thinking that having a vet would be better than to got to the clinic because 1. we will be dealing with the same person all the time. 2. the vet doctor could come in the emergency case, meanwhile the clinic is close and all they do is a referral to a pet hospital... The price range is mostly the same except for the travel expenses...