LF Silver or Gold JG to Grind Ranked.

My support and I are having trouble climb out of this elo because of retarded teammates. We consistently win lane, just need a good jg that can help the rest of the team. Preferably someone who plays champions like Zac. We won't need ganks unless we're getting camped by the enemy jg, we dominate in 2v2. Add Tielur on league.