Need help with my blackwing deck!?

3x blizzard, 3x bora, 3x shura 1x zephroys 1 gale 1 vayu 2 sirocco 1 spirit reaper 1 dark armed I want 19 monsters which of these 4 monsters should I add: 2nd vayu, 3rd sirocco, 1 thunder king, or 1 kochi the daybreak