I'm currently looking for ways to bring people back from the dead and put them under the control of the reviver, so far I have a few ideas but was wondering if there was a spell that does any of the following better:

True resurrection and Mind Rape - both level 9 spells so its a high cost for scrolls or requires a pair of mages, both spells can be stopped or resisted so not the greatest way to go about this.

Simulacrum - costly way to get half a powerful figure, works without any time limit since death and can even be used while the target is alive, the closest to what I want but not very powerful.

Create undead - not sure if this works or just give you a basic undead of that type, also has the same problem as the first entry, gaining control of the target isn't assured.