I typically run with Dahua (or Hikvision in a pinch) mixed with their own branded NVRs or, if software based, BlueIris. Both models of cameras are professional grade and look the part but can be a little costly. The Dahua cameras have several models with the "Starlight" sensor which makes low light situations look fantastic and easy to identify. Check out https://ipcamtalk.com for tons of reviews, footage, etc of many different cameras. Dahua aren't usually sold to "end users" in North America but there's a guy on Alibaba that ships straight from China cheaply and with NA firmware. He's highly used on IPCamTalk and I've personally purchased a few dozen cameras from him. https://www.aliexpress.com/store/1859367

@scottalanmiller that's exactly I was trying to point out. Storage for the camera footage is important not just in terms of available space. There may be a case where the OP would need to directly access his recordings in case of emergency to provide them to the authorities when the host is no longer available (stolen) or damaged. Having them stored on a separate NAS inside a shared folder would certainly make the above job easier. Having said that, this can also be done by simply backing up the video files elsewhere or syncing them offsite.

I've not used them, but the price and features seem awfully good.

Connected again after defaulting the NVR again. I have the cameras 'adopted' but they are showing disconnected still....

I'd buy any DVR that matches the camera type that want. And then buy the camera's separate. Any basic unit that you'd buy from Amazon are going to have crap camera's. All you need is the software and storage space. If you don't want to purchase a prebuilt system you could try something line ZoneMinder, and simply purchase camera's that are on the HAL. ZoneMinder HAL List