Can’t wait to hear what you end up with, keep us posted! We’ve had all small to medium sized dogs. My smartest and most loyal was our Shetland Sheepdog growing up. He wasn’t what you’d call a cuddler, and he shed a ton, but he was so smart and could learn almost any trick or command.
We also had a Cavalier King Charles spaniel, they are beautiful and cuddly dogs, but tend to have a lot of health problems. I would say he was probably not the smartest dog we’ve ever had, but that’s ok
Now we have a shih tzu/bichon mix, and a Papillon/Yorke mix that we rescued. The Papillon/Yorkie mix I personally think is the most beautiful dog I’ve ever had. She’s very agile and has a flowing white and brown coat. I am her “person” and she’s very loyal to me. She also loves my husband, she is good with our kids but sometimes she hides from the youngest lol. She’s an excellent watchdog as far as alerting us to anything out of the ordinary. She does shed a bit but it’s more like clumps of fur at certain times of the year, not daily shedding all over the place. I feel like most of the Yorkie or Papillon mixes share her traits of energy but also lap dog-ness, and are good watch dogs if that’s something you’d like (not that they could fight off an intruder, but it’s handy to know they’d bark if anything suspicious was going on, and ours has alerted us to situations).
Our shih tzu/bichon doesn’t shed at all. Her mix is known as a teddy bear and it’s an apt description, you can hug and hold her just like a teddy bear. She’s incredibly lazy but does like short walks, and she definitely has her playful moods and wants to fetch toys. She’s smart and really quick learning tricks, but has a stubborn side for sure, she doesn’t have the “I’ll do anything that you ask” mentality that our Shetland Sheepdog had, it’s more “what’s in it for me” lol. But if you want a cuddly lap dog that doesn’t shed, I’d highly recommend a shih tzu, or Maltese too.
I think your idea to foster is a great one! With dogs who have been rescued, I’d say just give them time for their true personality to emerge. It can take months, but it’s so with it. Our rescue came to us very scared and the hardest dog I’ve had house train, but once she finally decided to trust us she just became the most amazing dog, and also hasn’t had a single accident in the house since