These are some I like:
https://www.mangago.zone/read-manga/mobyama_aji_to_mobtani_crou_no_kareinaru_nichijou_e_no_chousen/
https://www.mangago.zone/read-manga/ganbare_nakamura_kun/
https://www.mangago.zone/read-manga/ani_no_hanashi/
https://www.mangago.zone/read-manga/kamisama_to_toberanai_tsukai/
https://www.mangago.zone/read-manga/mihanada_pectolite/
https://www.mangago.zone/read-manga/awairo_emaki/
https://www.mangago.zone/read-manga/tasogare_outfocus/
https://www.mangago.zone/read-manga/koi_ga_ochitara/
https://www.mangago.zone/read-manga/host_in_down/
https://www.mangago.zone/read-manga/eyes_speak_more_love_than_the_mouth/
https://www.mangago.zone/read-manga/okusama_ha_alpha/
https://www.mangago.zone/read-manga/ore_no_oniku_chan/
https://www.mangago.zone/read-manga/boku_no_kawaii_stalker/
https://www.mangago.zone/read-manga/gray_to_blue_no_ai_made/
https://www.mangago.zone/read-manga/mikami_to_sato_wa_mada_yamashikunai/
https://www.mangago.zone/read-manga/mitto_mo_nai_koi/
https://www.mangago.zone/read-manga/dogeza_shite_kudasai/
https://www.mangago.zone/read-manga/30_sai_kara_no_coming_out/
https://www.mangago.zone/read-manga/houtou_musuko_to_koi_no_ana/
boku no pico
know some legit good short manga? idc about any genre, but it would be good if it is yaoi or bl.