What power level are you aiming for? Depending on how strong the rest of the party is, you can do plenty well with some skeletons or zombies.
Sadly you can't get Corpsecrafter for the Str and HP bonuses, but you still have access to Desecrate. Make a portable alter to an evil deity and Desecrate it every time before animating a creature. This will give it a permanent +2 bonus on some rolls and +2 HP per HD.
Some types of monsters to look for when animating:
Monsters with many attacks and a good Str score:
These make good skeletons. Sadly, I don't think they keep pounce (it's a special attack and not a special quality), so if the original monster had it, it will lose some effectiveness. Also, their natural AC will likely drop.
Large winged fliers:
Turn one into a zombie if you want a flying mount. You don't even need anything good here. A 3 HD hippogriff will do nicely.
Hydras:
Because of the weird way hydras are set up, a hydra zombie still gets all of its attacks as well as a metric fuck ton of HP for being a zombie. They're slow, but depending on the situation, you can totally rip things in half with these.
Lots 'o humanoids:
Humanoids can wield weapons and wear armor (they're not proficient in armor, but several have 0 ACP). So, you give them all bows and leather armor (or MW studded leather if you have the money) and have a bunch of them shoot at stuff. Although, by 10th level, this might not be worth your time and effort unless you can somehow bolster the attacks. I supposed if you come across a very large supply of poison, you could poison hundreds of arrows and know that once enough arrows get flying around, some will hit regardless of AC and saves will fail once enough have to be made (go natural 20/natural 1 rule on attacks and saves!).
My only complaint about the last one is it could grind the game to a halt.
Note, that the biggest thing you're going for here is extra actions. You'll have to use your judgment on when to and when not to use them.
