Lemonwald has (or used to have) bulldog-style handles that were inexpensive and quite nicely grippy, almost as much as Alpha handles.It's indeed looking much more promising, here is why: The knurling and patterns have exactly zero grip, you can slide up and down on them. To lock the handle in the hand, you have to grip it at the rings between the three segments. The whole patterns around the segments are not grippy at all! Add lather and the heavy weight, it is a beefy 14 or even 15 mm handle of quite some length, and it becomes a bit silly. Because I always try to grip it at the knurly parts that aren't that grippy now and then.
Buying it as titanium version might help alleviate some of the problems, but I am afraid they might be electropolished like the SS handles. But maybe the titanium knurls are resilient enough to stay a bit edgy? That would be nice.
I also have the Scepter handle from DSCosmetics. Now it isn't so slippery as becoming unusable, but the knurling doesn't really add much grip. The best knurling is on the Alpha handles, they are not as rough as the extreme Super Knurl by Razorocok, but still supremely grippy and nice looking. And as usual, the Timeless Ti Crown handle also works nicely.
I bet the very same handle made by Yaqi and DSCosmetic would be more slippery when made by DSC. It must be their electropolishing. Yaqi CLAIMS hand polishing now and then, and that seems to be true, but I am not sure for every handle. Some designs are just too well suited for electropolishing, as they have no knurls, but just spirals or geometrical designs. Like the DSCosmetic Ladder handle, that one is slippery by default, but has three massive finger cutouts in the handle design that it doesn't matter that much anymore.
My thoughts on the Destroyer handle are pretty much the same. Pretty, but poor grip.