No better way to start off this list than with the legendary Doukyuusei.
This manga perfectly encapsulates the will of youth to keep moving forward!! The decision concerning what you want to do in the future is one fraught with uncertainty.
Nothing cuter than a companion that constantly brings out your best, pushing you forward at critical moments of your life.
Kimi wa Natsu no Naka is the colour BLUE in youth (the kanji for seishun, 青春, contains the character meaning blue).
Slouched backs, window seats, rooftop lunches, beaches... This manga has them all.
You can hear the sunspot is the perfect University story symbolising youth. It's filled with days that feel like the warm streak of light on your face, peaking through lush branches of trees in Summer. Bonds nurtured thanks to the warmth and energy of Taichi, and courage of Kohei.
Cute slice-of-life interactions between Sasaki and Miyano. The slow burn is perfectly matched by the characters' youthful hesitation at certain turning points of their romance.
Definitely also read Hirano to Kagiura for extra sparkle!!
Puberty is an awkward topic, but it's an important part of growing up. It's also a steep learning curve. Here's some one that straight up skipped the tutorial steps and learns it first-hand...
Doukyuusei (NAKAMURA Asumiko)