Besides taking the ABD machine so that I can have an infinite amount of bells and not have to worry anymore about going bankrupt, I'll grab the miniature desk fan, island pamphlet, and the large door standing right next to Isabelle.
I'm grabbing the drawer, the electric kettle, and the mugs. I love tea, so the electric kettle and mugs would be useful for me and I think the drawer is cute!
The Tom Nook poster
that wooden cabinet
...okay fine maybe the pot of flowers too, but with a different flower probably. Maybe one of the hyacinths or lilies?
I would take whatever is in that room behind that back door. I bet that's where Tom Nook keeps the good stuff I'd also take his laptop to see what documents he has on there.