Best BD toys for tying a knot?

I was curious about which BD toy had the best knot for tying, I seen that alot of people like Fenir for knot tying. Is there any other toys that BD makes that are good for tying knots?

 

Rex is also good, although it requires a little more depth. My absolute favorite knot is Phoenix from exotic erotics, and would recommend looking into that design. To me, the tying sensation is related to the knot to stalk ratio, Fenrir (except the XL) has a really high knot to stalk ratio for example! If this ratio is too low like in the egg plug you won't get the tied sensation.

 

Medium Austin was my first one, worked out well with stem to knot ratio. I found the increase from medium to large size to be a bit much, but everyone has their own. Medium Cole is a decent one as well. Just from my experience.