You mean DLNA? Like media server? The ones I am/was using are quite wide spread.
The most popular is plex I think, but I never liked that you have to register someplace else to be access your local library, crazy notion for me.
Anyway the nginx reverse proxy is enough for those. You can login and listen to your own music or watch your movies anywhere.
Checkout for example here: https://github.com/linuxserver/reverse-proxy-confs