We’ve been happy with the VIOFO A129 Pro. Not very expensive and good quality video on both cameras day and night. There are lots of day/night comparison videos and the VIOFO beat a lot of cameras that were much more expensive.
Yep I’ve also got a VIOFO, works great.
I thought it would be kinda ugly when I looked at it, but depending on how your car is designed once it’s mounted you don’t really see it so it’s fine. Took a while to figure out how to wire it to the battery though, mostly because I’d never done that before.