Looking for placeholder sprites/graphics for a 2.5D/3D game

I'm looking for placeholder sprites for a 3D game with a ~45degree top down view.
Something like this (screenshot from Myth 2):

At the moment I'm not really concerned if they are from a commercial game (because I'll replace them eventually) or a game you or someone else made/abandoned.

The spritesheets should look approximately like this (the angle doesn't matter that much as long as its not a straight top-down view)

This sprite is from myth2, unfortunately this is the only Myth2 spritesheet I found on the internet and I'm not exactly sure how to rip spritesheets from Myth2.

Does anyone have any sprites like this that I could use as placeholders?

I've found that the original Myth2 had sizable modding community with tens of various new units made for the game, it would be perfect if I could use some of those spritesheets as a placeholder.