You could check out 'Fullmetal Alchemist'. There's a character named Roy Mustang who has white hair and is a fan favorite. The manga's story and art are top-notch.
One popular manga with a white-haired anime guy is 'Bleach'. The character Byakuya Kuchiki has white hair and is quite memorable.
Another option is 'Naruto'. The character Kakashi Hatake has white hair and plays an important role. The manga has a wide fan base and a rich storyline.
One such manga could be 'Sword Art Online.' It has a character with white hair and is quite popular.
There's 'The Enchanted Realm' manga where the main female character has white hair and blue eyes. The story is filled with fantasy and adventure.
There are a few like 'Neko no Kuroi Yoru' which has a black haired neko guy and is quite popular for its unique storyline and art style.
One popular manga with a red-haired anime guy is 'Bleach'. Ichigo Kurosaki has distinctive red hair and is a well-loved character.
The popularity of the white-haired cartoon guy could be down to a combination of factors. His hairstyle might give him an edge and make him memorable. His actions and decisions in the story could be inspiring or relatable. And sometimes, it's just the charm of the overall design that catches people's attention.
There's 'Gintama' which has a character named Gintoki Sakata with red hair. The show is known for its humor and unique characters.
Another one could be 'Tower of God'. The protagonist has black hair and the manhwa has a complex and engaging plot. It's definitely worth a read if you're into this kind of stuff.
One popular example is Silver Surfer. His unique look and powers make him stand out.
They might be friends or have a romantic connection. It really depends on the context of the manga.
One popular anime with a blonde-haired dude is 'Sword Art Online'. Kirito has blonde hair and is a well-known character.