Of course. Get hikvision. Or Annke, which is a oem reseller and a bit cheaper. No cloud required, you get a proper web interface for configuration and two (configurable) rtsp streams.
If you want to be 100% sure they can not phone home, get a managed switch and put them on a separate vlan together with your nvr.
And please don’t go the wifi route. It’s just crap for video surveillance. Get some cameras with Ethernet and POE, that way it’s still just one cable, but no more dropped frames.