You don't say how big your dogs are, my guess is - the pale brown dog looks like a min pin/Chihuahua cross with possibly an Italian greyhound. The other one not so easy to guess from your photos. But I'd say a terrier mix. Which terrier? Jack Russell - if they are common in your area. Maybe more photos will help us with further guesses.
the light brown one could be a Mix of a Pinscher (they also come in red, brown and reddish brown) and Chihuahua.
the spotted one looks like a Terrier mix.
depending on what breeds are common in your area it could be for example a Ratonero mix (if you live somwhere on the hispanic peninsula or ther are a lot of dogs in your area that come from spanish/portuguese shelters) , Rat Terrier mix (if you're in the USA and they're common in your area), or a Jack Russel mix that are common in a lot of nations.
Somehow the white one looks like he likes to play pranks, I'd give him a name of a trickster like Till Eulenspiegel/Owlglass or Loki.
I'm in Texas, and Jack Russell Terriers and Rat Terriers are common around the Houston area here. It seems to me he looks a little like a blue healer around his ears and eyes, and his forehead is more broad than a small terrier usually is. Plus he has faint spots on his back. This morning I decided to name him Jinx.
I am really excited about the Wisdom Panel DNA test. It should be interesting to see the info for both of them.
I can't see the pictures because it says I need to see the admin, but word of advise with the DNA tests. Take them with a grain of salt. They may or may not be accurate, however, it is fun to see what they could be mixed with. Good luck.