I have noticed over the last couple of years that newer speakers no longer have grilles on them. It seems wildly unsafe to have a bare tweeter that any slight accident can destroy the expensive piece of equipment.
I just checked BestBuy, which is obviously not the best source of information, but all of the floor speakers they have come with grills. They show them without the grills, but there’s always a picture at the end to show that they come with them.
Edit: just browsed crutchfield.com and grills galore!