I NEED IT

I KNOW BUT ITS SIMILIAR

'real' brothers or like stepbrothers (like cherry blossom?)
stepbrothers
http://www.mangago.me/read-manga/gokudou_darling/
http://www.mangago.me/read-manga/charao_kun_to_haraguro_kun_no_himitsu/
one is adopted
http://www.mangago.me/read-manga/jika_renai_chuudoku/
mhh or are you sure about the brother king? maybe you just want the cute vibes from cherry blossom? I ask this bec the ones i recommended are good but not so adorable like cherry.....

real brothers

sry! do you like darker ones too? some of them are more ... dark I guess^^
http://www.mangago.me/read-manga/ienai_itami_o_daite_iru/
http://www.mangago.me/read-manga/ani_no_chuukoku/
uh they are half bros. not many people like it but I do. like the art and also, like pathetic ones http://www.mangago.me/read-manga/tsume_to_toge/
this one here, was the first I read I think. http://www.mangago.me/read-manga/brother_x_brother/
this is broxbro+ twincest+ 3p+ omegaverse I like it a lot! its not only smutty also a good plot. also the characters are good http://www.mangago.me/read-manga/ai_to_makoto_moriyo/

Hmmm... i think i like the most when there are growing up together or there are still in school.
U know what i mean? Xd

Oh and ily soo much for your recommendtations and so so sorry for by bad English