Knipex can be found pretty much anywhere even Home Depot, if a DIY has no idea which one to get, such as the OP, just see what Knipex is being sold from a bike retailer, as those will be made for wire rope.

Once you own one of these, you know what to look for in the next purchase, any brand.

The Park Tool one is "ok" (as it is one of the cheapest ones) and seems to be fine for Shimano and Jagwire, the only thing I don't like is the inner cable crimper which just squishes it flat.

To get that factory crimp, the Shimano cutter has this diamond crimper that makes for a cleaner one.