Hiya Lesley. Well, look-a you, going into dog ownership.

I wouldn't be without one - and the few times I have been, I just stopped walking out anywhere.
Thing is, every dog brings its pros and cons. Like bats says, labs are big, bouncy blighters, usually very friendly but... they famously have trouble with recall and wandering off. Not all, but can be.
I wouldn't touch a bassett hound with a bassett hound pole. They are lovely too, but their problems are all health matters. Look at the body shape and features and you can see why. Heavy dog on short legs and very long back; eye-lids away from the eyes; ears too long, etc. They also have allergies (the four I currently know are so allergic to EVERYTHING they have to be fed special dried foods and bottled water!).
I went for a Springer Spaniel, lol.... so I must have had some really bad karma to pay back.

PLUS, she has Learning Difficulties (yes, dogs can have that

) which a lot of dalmatians also suffer from.
I was going to go for a small but tough type - boarder terriers were the favourite, closely followed by cairn terriers. Terrific little dogs and famously great with children and people... but can be a littlke yappy at times and can be snappy towards other dogs (think Little Man Syndrome).
Golden Retrievers are God's Own Dogs. *sighs* I had my beautiful Beulah for 15 very happy years. They are fun, friendly and usually very keen to please. Their only "downside" (which never bothered me) is that they moult all year round.
There's no use trying to talk you into an alsatian if you are nervous of them - but if you knew one, you'd not only never be nervous of them again, you'd be a devotee of the breed, like me. I'm planning to get two at sometimes up ahead.
RESCUE DOGS. Okaaaay, I'll earn no Brownie Points for this but know this: whatever breed you rescue from a dog centre is likely to come with problems (almost always caused by their previous owners) and you will be some time undoing the problems before you can go on ahead with the training. It's never the dogs' faults, but the problems will be there and have to be dealt with. Hopefully, the rescue centre you go to will be honest about every dog's real needs and "quirks".
You're not too far from a Welsh rescue centre called Many Tears Rescue (or summat like that - if you want me to, I'll try to track the link for you) who rescue dogs and sometimes puppies from Puppy Farms. They are very honest about every dog's needs and they have some lovely little types - West Highland Terriers (sometimes skin problems), poodles (great for anyone with allergies or asthma as they never shed hair etc., but can have teeth and skin problems).
So, every dog will come with a list of pros and one or two cons. But you'll end up loving the Hairy Little Git anyway.