Please experts, I'm dev, I have coin developed in golang for weeks, wallet+consensus+database all work ok

Now I need networking  & UPNP (to bypass nat) , block delivery, witness delivery, sending transactions NEEDED.

Which golang coin has the best networking

I looked at Skycoin and Ethereum do you know any other.

Thank you

EDIT: another option is just fake it and put blocks on a web server, many early coins do this. Is this a good idea?