Brian/Paul Walker always dresses atrociously during all his parts in the series…so I wouldn’t want him to be the example for my male mc.
Vin Diesel/Dom actually has his own style, but it is ultra buff/masculine and really only works if the mc is packing both a significant amount of muscle and attitude. But it is certainly much better than Brian’s.
The Asian kid villains of the first movie really did have their own style too with the shorter cousin wearing the era’s risque/sexy masculine club clothing as streetwear, definitely a bold, risky move but one that also requires a significant of money. Though yes, I would love to do that for the mc, it really would be a big fuck you to the small town and its bigots, assuming of course the mc has the body and the money to go for it. The main villain had his own take on the classy preppy style too.
If you want another car/crime thing of the era for inspiration for male clothes/costume I would suggest Fastlane (though I really watched that one only for a young Peter Facinelli). In contrast to Brian in Fast and Furious who was always by far the worst dressed male member of the main cast Facinelli’s character dresses much better while still being mostly within the mainstream for white guys of the era, except for the occasional leather pants…which I did like quite a lot.
Whatever a particular outcast wants and/or can afford. This one really in the simplest to answer.
Unless how they dress really is why they are an outcast they have, ironically, more fashion freedom than most of rest of the cast.