We have a Chinese cleaver (切肉刀) but it is much too large to fit into our knife block with the rest of the knives. So we put the cleaver in a drawer.
Alll cleavers are a bit different size and shapes, but for comparison the blade on our cleaver is about 3 1/16" (~77mm) high and 6 9/16" (~166mm) wide and it has a snug interference fit (which I wanted so help prevent accidentally fall out). If your blade is bigger or smaller, you can calculate the % difference from my knife's dimensions (77x166mm) and then adjust the scale accordingly.
Also added a few holes in the back to (optionally) add 15x2mm magnets. You can stack up to two 15x2 magnets per hole. Those small magnets certainly aren't strong enough to keep the whole knife from falling out if turned upside down! But together with the existing snug interference fit, can help add a little additional attachment force for an even more secure fit.
My included profile uses 3 walls/perimeters but a low infill (10%). It seems plenty strong so far. If you print in the provided orientation, no supports are needed. My profile also uses a (5mm) brim just to ensure that this fairly tall and skinny model doesn't break free from the build plate. If you end up slicing your own version, I would still recommend the thick brim.
Would love to see pictures of your makes of this. Plus, MakerWorld will give you a few points for doing so as well. Win-win. Thanks.