Help on advice on list building old dominion

Hello!

I am building the starter box for old dominion and I am not sure what to build.

I built the legionaries and prodmoi and xhiliarch, but now I want to build 6 stands of athanatoi or vangian guard and I am not sure which one is the best one for what i want to do ( i don't really want to do 3 and 3 as I don't think I would be using both in a 2000 points army )

I already got a theokrator to reach 1000points army and I would like to see examples of how to reach 2000 points with what i already have + what to buy to reach that

Thank you very much for the help! I am really stuck right now as how to go forward