Best way to implement load-balancer

Hello, I'm facing problem with implement load balancer for unity3d 5 /// clustering . Is there someone that can tell me is there any best way to implement it with UNET or should i touch another tech.? I read about Photon that could help me, based on RPC or PhotonWire made in this technology. So if you have experience in that kind of magic i would be thankful for any tips. Another question : What about the max-user-connection is that limited for personal edition to 20 and how can i avoid that, should i implement own server based on another technology, not unet ?

Ps. I learn unity only few days and I'm doing recognition, don't be too rough. Thanks in advance :)