There no single answer as it depends on loads of other factors and budget!! Start from there and maybe we can guide you achieve your suspension goals.
I've used the HKS hypermax RS, KW V3 and Tein monoflex and from a quality point perspective the KW is a league above the two Japanese makes. But this is not really comparing like for like. Eg type of spring, rate, adjustability, damper design etc etc.
Would I recommend the V3 for simple road use....... No because having three way adjustability can make for difficult set up. The V1 or 2 may be adequate
My personal view would be for road use and a small budget and not wanting to swap other suspension parts I'd say go whatever you can afford and lower the car only about 20mm so you don't run into out of specs and the set the coilover to your driving need. From there tune or develop your suspension as needed.
Just choose something with simple preset adjustability for bump and rebound and most of the coilovers here will do the job.