Not a breed you mentioned, but I bought a King Charles Cavalier last year and I absolutely adore her!
She is by far the smartest dog I’ve ever owned - in a matter of weeks she knew her name, and the basic commands (sit, down, come). She’s not a year old yet but she already knows over 50 commands - among them grabbing and bringing stuff I point at, going left, right or back, crawl, beg, jump, stop, speak,… And the funniest thing is she picked most of them out without me actually taking the effort to train her (she just associated a certain word with a certain behavior and started doing stuff by herself to please me).
I am yet to know someone who doesn’t instantly fall in love with her. My grandmother is actually not a dog person at all (shoos our other dog as soon as he approaches her) but loves Summer and will cuddle her for hours!
She is also very good with other animals. My other dog is very dog aggressive (has killed) and I was obviously very concerned about the two of them living together but he promptly accepted her (she is very submissive). I’ve also had bunnies leaping around in the garden and she would play with them and never did them any harm. Also great with horses and animals in general.
Summer also loves kids, which is stunning.
She is a very active dog who definitely needs a job, but won’t destroy anything if left alone. She is the cutest dog with those big expressive eyes.
I also know other dogs of the same breed and they are just like her - smart, expressive, lovable dogs who would do anything to please their owner.
Definitely a breed I would recommend. Just be sure you find a reputable breeder who health tests his/her dogs and has the puppies best interest in mind.