Not everyone can pull off the knee-high galoshes look (I cannot) and to be honest, Hunter Ankle Boots are bulbous and heavy and look like clown shoes. No offense. Alice + Whittles makes eco-friendly, slim, lightweight rain boots to get you through the damp months, and a couple different colors are on sale for under $100 right now.
Note: I’d recommend sizing up, as they run pretty narrow.