Look at photos on Houzz to see what you like. I like the flat fronts on our kitchen drawers. It eliminates the abundance of "boxes" visually and also eliminates the decision of where to put the handle (in the middle, on the top stile etc - don't get me started on that ..... ).

Is this the look you wanted?

I think that photo looks nice....

i'm good with the top drawer being a slab, but...

for shaker style, if you have a lot of wide deep drawers instead of lower cabinets, i'd switch them, yes. if you only have a single rank of typical not as wide drawers, i'd be more likely to say leave them be.

can we see a plan or photo? if you wanted contemporary/glam i'd think that you'd want every thing slab without shaker at all ... ?

I like the shaker, it adds more richness.