Growing your server

I said this in another thread but you need unique content to make your server far different from others ( kinda hard since most servers use the same shit from gmodstore ) so invest in learning LUA or hiring someone that will do the job for you. Aside from the content, you will need very mature and friendly staff because you don't want retards abusing and decreasing the player count. Advertise your server on multiple advertising websites, or post on places that you can on like facepunch etc... If you wanna do DarkRP then sure but TTT and other gamemodes are less maintaining and easier to be "unique". Good luck with your server(s)