i've got 3 of these cameras, they do a decent job:
https://smile.amazon.com/gp/product/B01G1U4MVA

I'll post of up a pic from them tomorrow. Nice picture during the day, acceptable night-vision mode.

Connected to a POE switch, with iSpy software running on a 5 year old machine. The iSpy software is free, but they charge a subscription to get access to your video feed from the internet/mobile phone. The iSpy software is open source, and I've downloaded it and am replacing their subscription features with free ones.