I keep Hebrideans and they aren't at all wild, once they get used to being in a small, well-handled flock

. They are stunning to look at and full of character, not too hefty to turn, taste delicious, lamb easily. Train them to a bucket and feed them in a pen (including a tiny bit through the summer) and they will be simple to handle.
Another breed you might like is the Shetland - small and very easy to handle, so friendly it can be OTT sometimes

, very tasty, beautiful fleece, all sorts of colours so you can tell them apart - and spin their fleece

. Some people have said that Shetlands are flighty too, but ours won't stop rustling around in our pockets for biscuits
The ewes of both these breeds weigh about 35 to 45 kgs, the tups a bit more. For meat lambs you need to keep them over until the following summer when they are 16 months old to get a worthwhile size carcase.
I don't have any advice on using a sheepdog with them, but I know there are several experienced folk on here who will help.
Just seen L&M's post - saying pretty much the same thing

.
I would add that most Shetlands can be roo'ed, so don't need shearing at all. It's a great bit of time spent communing with your animals, in the sunshine as you remove their fleece for them