I'll add that Amazon really, really makes it difficult on the consumer. While you will see a link for "Lighting & Fans" you won't see any clear answers to the questions you will have regarding 1) which controls solution; 2) what switches control a fan; 3) what switches control a fan and how to separately control the light.
What you will see is an easy way to buy a $600+ fan already wifi-ready so you can throw away your perfectly good fan.
There are options to help you convert your current fan and light (if your fan has a light) to a control system that supports the Echo. It's so difficult to find on Amazon's site I took a break.