Warmest coat/jacket that’s safe for a car seat

Ma

So last year my LO was 18 months and she had a hand me down Northface fleece that was perfect for those freezing mornings. She had two layers of her clothes and then the fleece and it kept her warm enough from the door to the car and while the car wanted up. I’m having a hard time finding the same one and even if I could find it in her new size NF is so expensive. Any outwear you love at a reasonable price?