You keep saying buffs so I am going to guess American Buffs? As many breeds of geese come in buff coloring.
We have Americans in blue, lavender and buff. Very sweet so far. They aren't as in our face social as other breeds are, but they mind well when being moved between areas and graze all day long.
Our production (utility) Toulouse are large birds, quiet unless startled, but the first to tell new goslings turned out they are the boss.
The Dewlap Toulouse are still just goslings feathering in, but the gander is bold and not afraid of the adult geese in the least. As a flock the four of them have no problem walking away from everyone else in their pasture and doing their own thing.
Sebastopols are by far my favorites. The entire flock is just fun to be around and watch. The ganders are watchful and always alert. The girls are chatty little nibby nose things always telling you about their day. They completely ignore the chickens and look at them like they aren't worthy.
Out of all of the breeds we have the Dewlap Toulouse will do the least amount of grazing over a large area. The Americans, Production Toulouse and Sebbies all cover a wider area.
We do have a couple of ganders who don't like the chickens near them. Otherwise we have chickens, ducks and geese all sharing free range together. The geese help keep green space maintained for us, so less mowing. They will find and eliminate weeds in the yards completely, which is wonderful. The adults were Rabin the rear yard only last year and we never mowed from July to current. They are out front right now, so we need to run the mower in the rear space again.
Under fruit trees you will love how well they trim, and when fruit drops they will play clean up on the apples too.
Utility or production type birds were created for meat production
All young geese are goslings.
I wouldn't rush into geese just because there are a limited number available in your area right now. I would keep doing research on the breeds, figure out what you like visually and what will work with where you live. Get the housing ready, cause they grow faster than any chicken or duck and will need their house ready sooner rather than later. Then you will primed with all the benefits to share with hubby and be ready for spring hatchlings.