You can look in the Tactica Forum for army building tacticas.
Also, you scan through the Elector's Forum to find what people like to use and why. Rothgar has a stickied thread called the 8e Empire Handbook that describes every unit and item.
My suggestion up front is for you to get something with hitting power. You need Greatswords or Demigryphs to give your army some punch.
Most people run Halberds as their State troops, but you will want to run them in 40 size blocks or greater. Small State troop blocks in 8th Edition are just not going to cut it.
You are also lacking in diverters/chaff. I use lots of Archers (you can check out the Griffon Formation thread for more on this), but with your current models I would run some units of 5 Knights with musicians to help you dictate movement.
Hope that helps get you started.
HHG