I pretty much have a 'type' but sometimes I stray.
For the most part I really like dogs that can have a lot of energy when necessary, but don't really want 'hyper'. I like a dog that can be clown-ish but is also serious. I love a dog who is very into me... but can still be okay and friendly with strangers when necessary. I do like a bit of independence though at the same time but not too much. I like dogs who are aware and smart and somewhat intuitive. Definitely a dog who enjoys learning and training. I also have a strong 'want' for dogs who are into fetching, swimming, etc, it just makes life so much more fun.
Also don't typically like the happy go lucky love everyone type but it really depends on how a dog expels their happy energy lol. Hard to explain. Like I love most Goldens so much more than Labs. Different energy/vibe.
As far as looks go, I prefer lighter build, lean-type body, I do really like prick ears but certain breeds with floppy ears I just love too. I don't mind hair but don't like really thick poofy type hair.
Basically, love me some small terriers, Border Terrier being my favorite (if they had prick ears, they'd be 1000% perfect, hehe) followed by Silky. I've even looked into Rat Terriers a bit more lately. But I do love a good Westie or Cairn too, though their more bullet-shaped body isn't my preference.
And I've never owned a herder but I seem like I would mesh with the right ones very well. A Border Collie is still always on my mind but it would definitely have to be the right one for me and from the right breeder. I've done the big debate over and over in my head between BC's, Aussies, and ES's.
Basically like small terriers and herders seem to be my 'type' and what I really want in a dog. Not much in other groups interest me.
On the flip side, my kind of weird off-path wants include a Dogue de Bordeaux WAY into the future... I have a want for a giant breed but I can't see myself wanting one until maybe I'm a bit older, have a family of sorts, and not really interested in dog sports, etc. Right now they don't fit my current wants but I have a soft spot for them. Same with a Golden Retriever -- I love me a good Golden, and sometimes I get a 'want' for them but really the size is off putting at the moment. I really would like to try and stay under 35-40lbs. And then I do always love a good toy dog (Chihuahua and Havanese come to mind as breeds I could see myself owning) who is just mostly great as being a companion.
I also really mesh well with Dobermans and Rottweilers but I will probably always admire them from afar. Not sure I'd ever actually own them or not.