I personally love the Arlo system (we got it on Amazon). It's wireless so it's easy to put up anywhere. It records in color, can see in the dark and sends alerts to our phones if movement or sound happens. You can also adjust the brightness and pan around (a little bit) remotely.

EDIT: This is the system we got, we plan to add more cameras later:
https://www.amazon.com/Arlo-NETGEAR-Security-System-Wire-Free/dp/B00QH0Q8J4/ref=sr_1_24?ie=UTF8&qid=1511468599&sr=8-24&keywords=arlo+system