Amcrest (rebranded Dahua) and Reolink also get good reviews.
Loxone has primitive video handling so make sure your cameras can cast in motion jpeg at the same time as whatever the NVR is using so you can integrate if you want.
http://www.hikvision.co.uk/Products_accessries_212_i32196.html
With http://www.hikvision.co.uk/Products_accessries_760_i33765.html
See my other posts at https://groups.google.com/forum/m/#!topic/loxone-english/cd_n67zE91w for config ideas.
Blue Iris - windows only
Milestone xProtect
Zoneminder - linux
Shinobi - multi platform
I'll probably be running Blue Iris under Windows. It has to be native and not a VM to get QuickSync Intel hardware acceleration. Have it record to a NAS.
Then I'd like to install Musicserver4lox under the Windows Ubuntu subsystem and maybe just use a raspberry pi emulator or VM for Loxberry. I need to explore how best to structure it all and whether it will all work togetherr