In Dungeons and Dragons 3rd edition they introduced skeletons with all kinds of sizes such as Tiny, Small, Medium, Large, Huge, Gargantuan, and Colossal.
As a necromancer, it would be really entertaining to have undead of all kinds and sizes. However, Dungeons and Dragons 5th Edition limits the abilities of a necromancer, as the spell animate dead only allows the caster to reanimate Small and Medium humanoid creatures. Though it's understandable that WOTC made it this way as a way of balancing to prevent the creation of overpowered undead armies, it would be interesting for some sort of way of animating a creature larger than medium.
Personally, I like the idea of having a Gargantuan humanoid skeleton; however, I would not be sure how to apply statistics to an undead or create a proper way of balancing.
There is a section in DMG p. 282 for skeleton and zombie templates, however, the largest creature that exists with a humanoid body is a hill giant categorized as huge. Even then the challenge rating is 5 making thinking of a way of balancing difficult.
Even beyond my desires, I'm sure there are many other necromancer-loving individuals who would desire to animate and control a minotaur skeleton, or any other undead such as beasts or monstrosities.
Is there a way (even house or homebrew rules) of animating undead beyond these restrictions?