the WS2813 is a non-proprietary integrated LED addressing and driving chip
It is comparable to some one asking which "C++ compiler should i use" and you telling them "if C++ doesnt offer support their software you shouldn't use it..."
no one owns the Ws2813, therefore no one will offer support.
For an actually helpful response: You can build your own controllers using Arduino boards, this is the most cost effective solution. If you have a larger budget, there are many different 3rd party controller options available, Enttec is probably the most reputable. i would contact them if you go that way.