A real man should be endowed with intelligence, strength and nobility. These wonderful qualities must also be present in the appearance. Therefore, the question arises: how can you complete the beautiful harmonious style of a man?
Curly hair looks good with most haircuts because of the volume and movement. And if you want to wear it long, then it will probably look amazing, although personally I'm not a fan of long hair on men. But, to each his own.
Straight hair, if oily, then they can hang "icicles". To avoid this, do not comb them back, unless, of course, you have not stacked them for hours and have not tamed them to lie perfectly. Use more conditioner to soften and style.
Thin straight hair looks best with a simple, short, classic haircut. Your choice is "British" or "Hedgehog".
Curly hair will look great, like a more chaotic version of the Undercut haircut or like a long haircut. Add just a little tousled accent.
A well-chosen hairstyle is one of the main aspects of the effective appearance of a man at any age.
The hairstyle should emphasize individuality and be comfortable. My son, he is a teenager, and recently created his new look with tips for choosing boys haircuts here https://menshaircuts.com/boys-haircuts/
You can find tips on choosing hairstyles for men of any age and face type on menshaircuts.com