The new Amex cash card is pretty solid with 6% back on groceries and 3% back on gas and department stores (and 10% on restaurants for 6 months), but those aren't exactly prestige categories. I use that for everyday spending and the sapphire card for travel.
I've been rocking the same combo (Amex Blue Cash Preferred + Chase Sapphire Reserve) for a while now and I still marvel at how they compliment one another for max rewards across Groceries/Gas + Travel/Dining. The only category I have left would be Amazon really but I still buy 500 dollar Amazon gift cards at supermarkets rather get the Amazon store card to get total rewards coverage for my needs.
