I'm particularly fond of the following archetypes:

• Genuinely kind characters with gorgeous smiles
• Dumb jocks with gentle hearts
• Genuises with healthy egos
• The funny ones who may or may not curse a lot in fanfic

Generally not my type (though this doesn't mean I automatically dislike them; it just means they probably won't be my #1):

• the (usually fandom-designated) pretty boy
• Yanderes
• the cool, stoic ones

That being said, here are my personal favourites per fandom/series, in no particular order. Anyone who talks shit about them gets an instant block/mute from me (except Atobe, because I am aware that he can be total shitlord at times ahahaha)

• Aerith Gainsborough (FF7)
• Setzer Gabbiani (FF6)
• Yamamoto Takeshi (KHR)
• Dino Cavallone (KHR)
• Tachibana Makoto (Free!)
• Yamazaki Sousuke (Free!)
• Shiro (Voltron: Legendary Defender)
• Lance (Voltron: Legendary Defender)
• Hunk (Voltron: Legendary Defender)
• Kagami Taiga (KnB)
• Sakuragi Hanamichi (Slam Dunk)
• Tanaka Ryuu (Haikyuu!)
• Nishinoya Yu (Haikyuu!)
• Richard Gansey (The Raven Cycle)
• Balthier (FF12)
• Atobe Keigo (Tenipuri)
• Gladiolus Amicitia (FFXV)
• Ignis Scientia (FFXV)
• Noctis Lucis Caelum (FFXV) (THE SOLE PRETTY BOY EXCEPTION)
• Prompto Argentum (FFXV)