After a number of games of Azir I have found him most suited for the top lane. He is a very interesting champ with insane late game carry potential!
Max w because sand warriors are like your main damage, then q, and lastly e.
Once you get your Nashors you should be pretty strong. Occasionally roam for kills/objectives
This is where Azir Shines, he is practically a mini army and can obliterate enemies. Teamfight if you can because Azir usually comes out on top.
Summon as many warriors as you can and direct them with q, use your e to position yourself correctly. I usually use my ult defensively in order to protect my carries.