There are literally dozens of different Owlbear minis available in physical or digital form. Curiousely the one that I like the most was one of the most expensive ones with also came in a low quality material.
I really love the Owlbear that comes as part of the D&D Monster Paint Set from Army Painter. The design just fits exactly for what an Owlbear looks like in my mind. Additionally he is rather bulky, which I always like, and the mini is rather large, which I also like. All in all it is a perfect Owlbear for me, so I didn’t really mind that I had to buy a whole paint set to get the mini.
What I did mind was the material. The mini is made from rather soft plastic. Luckily that is not such a big issue for larger models.