I’ve been using the nicer harbor freight sets for years, the ones in the metal cases. If you take care of them they are no better/worse than any of the other mid range taps & dies. In my experience, just about all sae cars can be nearly completely disassembled with 7/16, 1/2, 9/16, 5/8 wrenches and 1/4, 5/16, 3/8 taps & dies. Metric cars with 10mm, 12mm, 14mm, 17mm wrenches and 3mm, 4mm, 5mm taps & dies.

If it was me, I would get the Harbor Freight, or other inexpensive sets, and the few you use enough to break or wear out, you can replace just those taps/dies individually with nicer stuff. More than half you will probably never touch so not worth spending a lot on a full set of really nice stuff.