Animal and puppy toys that stand up easily on their own?

My middle son is turning 3 next month. He has autism and doesn't "play" with toys so much as set them up neatly. The reason I mention his autism is because toys that fall over easily or can't stand up (toys with heads too big, legs too thin, disproportionate, etc) make him very frustrated. It turns play time into meltdown time.

So I'd rather have recommendations from things you guys have bought for your kids and know they stand up easily and don't fall over for no reason. I don't want to order a bunch of animals online just to find out they can't stand up like they're supposed to because they make him so frustrated I have to take them away from him.

His favorite toys so I'm looking at toys similar to these: