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My favourites  
Anime:Aot,one piece,kaguya sama love is war
manga: berserk,jujutsu kaisen, chainsaw man,(honarary mension to oshi no ko) 
Light novel:tensura, cote,86

I love it when the protagonists are op, geniuses or just absolute badasses. 
I love sybling and family dynamics.
Also, I hate harems,sus ships, lemons(unless they are relevant to the story) and useless characters that tend to be irrelevant to the storyline.