Part of the problem is... ZEO is a very personal system. Aside from the baselines with the basic 4, every system will have different needs based on what corals are present, what's being dosed, how water is being changed/what source it is, etc, etc... it's really hard to say. But, as generalisations once you hit stage 2 (low dissolved organics):
SPS: Pohl's Coral Vitalizer, Amino Acid High Concentrate, SpongePower, Potassium Iodide Fluoride Concentrate, Iodide Complex Concentrate, K-Balance, B-Balance, Pohl'x Xtra Concentrate.
LPS/Mixed: Pohl's Coral Vitalizer, Amino Acid LPS, SpongePower, K-Balance.
NPS: Pohl's Coral Vitalizer, Amino Acid High Concentrate, SpongePower, Amino Acid LPS, Pohl'x Xtra Concentrate.
All tanks should really be using Coral Snow, ZEOzym, and BioMate in addition to their basic 4, however these are as with all things entirely optional. They do help immensely however. As with anything within ZEOvit, all additions need to be applied very sparingly and once additional element at a time - adding in more than one thing at a time makes it harder to observe the impact each has and tune them to match your system's needs. K-Balance, B-Balance, PIF, and JOD all need to be used very sparingly and observed closely as these are actual trace ions and not foods - and can have quite a negative impact on system health if applied incorrectly.