If you like psychological dramas this is the best incest one I've read http://www.mangago.zone/read-manga/deichuu_no_hasu/
i gave this one a 5/5 http://www.mangago.zone/read-manga/nanadome_no_gomenne/
You can try this one. A bit psychological
http://www.mangago.zone/read-manga/baker_baker_paradox/
http://www.mangago.zone/read-manga/ai_to_makoto_moriyo/ T___T the only other incest manga I've read recently. Also ig Love or Hate if you haven't tried that, it's step brothers but the taboo is still prevalent
i may get judged but idrc. does anyone have any good BL's with brother x brother in them? anything similar to http://www.mangago.zone/read-manga/onii_chan_datte_amaetai_wake_de/ is more than welcome!