Literally any mangas by ๐๐๐๐๐จ๐ ๐๐ช๐ง๐ช๐ฎ๐ are absolutely golden and wholesome. I can't recommend their works enough -- especially her "๐๐ช๐ฎ๐ช ๐ต๐ฐ ๐๐ข๐ต๐ด๐ถ ๐ฏ๐ฐ ๐๐ข๐ฌ๐ข" series (see number 51-53 in the list).
Bio: Two boys meet at a cultural center, the rich one does boxing and the poor boy does Ballet. They become very close friends.
Basic Mood: Sickenly sweet, no angst.
Smut: none at all. Even the kissing is censored.
Triggers: Human Trafficking, murder (non-explicit). Some chapters contains mentions of prearranged and forced marriage, potential homophobia.
Bio: a sweet story about a boy who loves rabbits but can't be around them due to allergy.
Basic Mood: Very sweet and no angst.
Smut: Yes, but only a little.
Triggers: None that I can think of.
Bio: A lonely student has a bird as a friend who loves and endears him.
Basic Mood: Very sweet and no angst.
Smut: Yes, but only a little.
Triggers: Scars, bullying.
Bio: A "girl" meets "her" hero young but turns out to be a boy, upon finding out the hero runs away, but they meet up again and fall in love.
Basic Mood: Sweet and pretty angsty. Main component that made this book fall into this list is that the mother actually got help and improved mentally.
Smut: Yes, but only a little.
Triggers: Blood, child death, death, internalized homophobia.