The Americans feels similar (80s nostalgia with great set / wardrobe / soundtrack etc) but it's much bleaker / darker (obviously, given the subject matter). Similar in that there's a focus on a young couple with lots of ups and downs, with a couple kids (though the kids play a bigger role than in HaCf). Also, similar 80s computer tech stuff.

Writing / acting are excellent.

Two of my favorite shows ever. I'm confident you'd like it, even if plot wise it's nothing like HaCf.