I spend 10+ hours a week in my car, so I can relate to you. Back in the day I dropped thousands into car gear (buy, try, sell, repeat-- can anyone relate?). There were more premium brands than exist today. I still have my JL 12w6v2 sub and Alpine amp for it; they've followed me through around 10 years and 5 different cars, so I at least settled on those.
Car audio will never be "perfect" because there are too many variables that you can't always control. If the steering wheel were in the middle of the dash (equidistant from tweeters), and you weren't ever moving, I guess you could almost get it right. But most factory speakers (in a "common man's" car- I'm not talking about luxury cars since I'm not a luxury car person) are absolute garbage bought from the lowest bidder and I've never met a person who has had them replaced and not gush about the improvements. My factory Hyundai speakers are "passable" for car speakers and even saying that, there are certain passages of certain songs that jolt my head and get my attention because some detail I knew I was supposed to hear just isn't there. At those moments I remember that I still need to get the speakers I bought installed. Some detractors say that aftermarket speakers can't help, but they are full of BS. I've done this way too many times.
{end rant} For door speakers, some trusted premium brands are Image Dynamics, JL, Hertz, Focal, even Dynaudio. I can't tell you what's currently good because I've moved on from that as a full time hobby. If you have a nearby autosound store (something real, not Best Buy if you can help it), bring some music and demo the brands and models they offer. Let your ears sell you; the process should be no different than buying speakers for your home. Just keep in mind that you want a good install too (deadening your doors is HUGE) and since most car speakers are 6.5" getting a decent sub (no you don't need a tooth rattling monster) will round out the sound.