Discord or Teamspeak or skype

Discord is good but eventually you will pay for a better service. I use Discord Teamspeak3 and Skype (I prefer Teamspeak 3 over Discord)
I can say though That Teamspeak has now changed hands I believe by a person who goes by the username Ciphers.PW I cant say where but you can find him on you tube then look for the teamspeak video.
He talks about teamspeak and the changes they are making and will be free. just giving information about what I know of whats doing with teamspeak as the original people have just stopped updating etc.