Also, as far as more realistic, be prepared to spend an arm and a leg for most of them. link
this place has most of the packers listed available, though note that that shiny one listed can come in a matte color now. Not extra lubed up. Haha!
My opinion on realistic ones: It's going to get destroyed from being in your pants all day every day. I personally don't want to spend a Benjamin (or more) on something that 99.99999% of the population isn't going to see.. The only reason to get a realistic one is if you have to use public showers, or if your disphoria is severe.