I don't think you sounds remotely ready for a dog whatsoever.
And I say that as someone who is a first time dog owner who loves her dog more than anything... was a hundred times more prepared and realistic than you seem to be...and it was still a shock.
Unless you get an older rescue (and find one with no issues) you are looking at a puppy. Puppies do NOT slot into your life. They take over.
As in..they have to be taken out to toilet every half an hour at first.. some take a few weeks, some months. They cry horribly if left even for a few minutes. The cry at night (well mine didn't because she slept with me) It's exactly like a newborn baby, without the nappy!
I took 8 weeks off work when we got ours.. and even at 2 years old she has (and needs) wrap round care because she can't be left more than a few hours so days out involve figuring out dog care.
Walking.. once old enough... will you be happy to leave the kids home alone when you walk her, as I can place a bet the novelty will wear off fast when it's pouring with rain and cold.?
Puppies bite.. really bite because they are babies and that's how they explore and play. I was very lucky that mine wasn't much of a nipper and never chewed any household items, my friend's lovely dog has chewed EVERYTHING.. ruined clothes, furniture, expensive Raybans....
Are you prepared to do puppy classes regardless of cost and weather? Pet insurance? Forgo holidays if your dog isn't happy to be left with family?
Regardless of breed , dogs are like people... individuals. Despite good socialisation and training many become nervous, or have separation anxiety, or become reactive due to bad experiences. Mine was perfect til she had her first season and then became scared and reactive to some dogs... behaviourists are bloody expensive I can tell you! (She's improved a lot since but I always have to be aware of other dogs and how she might be feeling). Dogs don't always fit their 'breed profile' regardless of how good their breeder or pedigree traits are, and crosses are literally pot luck.. some are fab, some have the worst traits of both breeds .
My son in law's parents have a standard poodle cross ( from a farmers 'oops') and he's barky, needs to run miles every day and very intelligent. Great dog... for the farm they live on...! He'd be hideous in a normal house tho!
Go to Discover Dogs... it's a great day out and you will meet lots of serious clubs and breeders who can give you realiable informations. But for the love of god put more serious thought into it than you are currently doing!
I love my dog with every bit of me.. she is fabulous. But I waited to get one until I could drop to part time hours, pay for a walker when needed, and didn't have young kids to drag out with me when I'm out for hours on end. It is a HUGE committment!