Diamond ADC + Diamond Support LF Diamond Only Team

My friend Topopotamus and I wants to join a serious diamond team to grind to challenger, make tournaments. We're 17 and 20 We can use any voice communication program I already played in challenger High diamond teams and have good knowledge. We both play pretty much all champions Our mains, Morgana, Graves, Janna, Draven, Lucian, etc (we can play all)