How do you get restaurant reservations in NYC, if you are not extremely fat

I don’t like making plans 2-3 weeks out, and often I cannot. But it seems harder now than 10 or 20 years ago. I use resi, with an amex platinum booster that adds very little, and struggle to find spots at new and interesting places. Is there a cheat code for the moderately fat?

The same question would apply to other cities if the solution is local.