Mind that as Enchantment focused Wiz your AM Core SLA's won't do any dmg, only the ones in the tree - but these cannot be meta'ed and are pretty weak compaired to regular spells, both AM and PM ones. I made some good experiences with the heightened prismatic spells (T5 and T7), though they are Evocation ones, they have two Death effects that could proc. And on trash mobs even on epic Hard it procced pretty often and they lost their saving rolls. Combined with Mass Hold or Dancing Ball or both you can do insta-kills as Archmage Enchanter too.

If you take Human also keep an eye on your Will saves, because especially in early levels becoming holded really is annoying. And raise your UMD to be able to scroll-cast Heal. If you take "Half-Human" with Cleric Dilettante it saves a lot of UMD points. When you can (scroll-)cast cure/healing/repair spells and think to have enough sp then I recommend to use a melee Hire like Fighter/Paladin/Barbarian as most of them are very durable, do decent damage and make at least soloing a lot easier than with a Cleric Hire who has Divine Vitality (most important: A Cleric/FvS Hire if not set to passive will heal your charmed mobs too and pretty fast be out of sp) - for the price that you have to heal/repair them from time to time.

And some more general tips:

If it's possible always charm/command the caster mobs (Wiz type or Cleric type) - either they will AoE kill everything else or be killed by everything else. In both cases good for you^^

Skeleton Archers won't do any damage to other Skeletons, but just aggroing them.

If you charm a Skeleton Wizard and stay in Undead Shroud, you will be healed in its Aura. You can also get several buffs from different wiz/cleric mobs if you stay in their range like Haste, Mass Aid, Death Ward and so on.

Some mob types are immune to the one or the other form of CC, so make sure to have slotted dancing/hold/charm/suggest and command all the time. Eg. Drow Necromancers can be charmed in their normal form and commanded in their undead form.

Charmed mobs can be buffed and healed too. But buffs will remain on them if you release them. Whether they still do their effects or not, I do not know exactly.

Though the regular charm/suggestion spells state that the mob won't follow you, they will try to reach hostile enemies in their range and thus in some situations move pretty far.

Sleeping Lions are not targetable and not AoE harmable too, until you get close to them making them stand up.

Beholders are charmable.