@Githa Just go Support Sejuani, then it doesn't matter if you have a wimpy ADC, you can blow people up by yourself even with a full support/tank build.
Me myself I play Support, right now I am in love with flash/teleport Shen support, because you can literally be everywhere. Aside from that I prefer tank/bruiser supports and as my statement above implies I'm not afraid of Galio or Sejuani support.
Nautilus is my bae though.