If you're re-pinning a lot of connections you'll want a decent set of crimp tools...
The most versatile pair of crimp tools in my terminal box are the five cavity two operation Delphi 12085270 & 12085271. They are priced around $100 each but they will properly crimp most of the automotive and powersport connector terminals I've run into... From Packard 56/59 and Weatherpak or Metripak 150/280/480/630 to Molex GT150 and Mate-n-locks on ATVs and Mowers.
The single crimp operation tools are connector specific and just as much money as these tools that crimp the insulation and the conductor in separate operations.
12085270 with three insulation seal crimp cavities and two conductor cavities.
12085271 with three conductor cavities and two insulation wing cavities.
The odd stuff like the old Delphi double width Packard 56 & 59 two-wire and Pak Con two-wire terminals and there's another tool for the Packard 56/59 & Metripak 630 10-12ga terminals but I'd only buy em if you need em. Mine are infrequently used but I needed them for a couple jobs. The customers got to pay extra for the odd tooling I needed and now I have em.
For the Deutsch DTP, DT, & DTM and Amphenol CPC machined pin connectors I use the Daniels Military Aircraft tools AF8 & AFM8. You can get open wing terminals for the Deutsch DT & DTM, Canon, and AMP CPC families that will crimp in the Delphi tools but the eight indent Mil crimp on machined barrel terminals produces a fast zero defect field repair and I don't have to worry about the quality of the terminals. I use the snot out of these tools. I bought them used. Daniels will re-calibrate and repair them for a pretty reasonable fee should I ever need that service.