>>5366451I saw a tip on Tumblr where someone put the stand behind the figure without the base, in like a long "m" shape. The peg that would go into the base is angled so it's parallel with the ground for added support. Pretty much what OP's image is doing.
The tricky part is finding the right angle to not show the stand while not having the subject look directly at the camera. More often than not the stand's going to show.
What
>>5366460 said is a good method too. The first one I mean.