i would recommend basically just all of fujitobi’s works, if you have yet to read all of them. most of these are shounen ais (if not all) and if i’m not mistaken all fluff and cutesie:)
https://www.mangago.zone/read-manga/harenochi_shikibu/
https://www.mangago.zone/read-manga/merry_marbling/
https://www.mangago.zone/read-manga/dasadanan/
https://www.mangago.zone/read-manga/someone_else_s_bl_manhwa/
https://www.mangago.zone/read-manga/unriped_expression/
https://www.mangago.zone/read-manga/i_m/
https://www.mangago.zone/read-manga/unrequited_love_rendezvous/
https://www.mangago.zone/read-manga/one_room_ta/
https://www.mangago.zone/read-manga/keep_holding_on/
https://www.mangago.zone/read-manga/ogi_kun_no_natsuyasumi/
https://www.mangago.zone/read-manga/not_for_the_faint_of_heart/ (all author’s works are cute!)
https://www.mangago.zone/read-manga/the_music_box_of_petals/
a few more
https://www.mangago.zone/read-manga/hiyoko_to_yoru_to_yuenchi/
https://www.mangago.zone/read-manga/tonari_no_ren_kun_wa_chotto_kowai/
https://www.mangago.zone/read-manga/hoteri_hotette_first_kiss/ (straight)
https://www.mangago.zone/read-manga/tsuka_no_ma_no_ichika/ (straight, this one’s more on the heavy side but seemingly heartwarming either way)
https://www.mangago.zone/read-manga/is_it_wrong_to_confess_to_a_married_dilf_cupid_scans/
https://www.mangago.zone/read-manga/one_small_step/ (do be warned it is not all rainbows and sunshines…)
Bl/straight recs with a cute artstylea like: https://www.mangago.zone/read-manga/inoue_kun_hajimemasen_ka/
https://www.mangago.zone/read-manga/motto_ganbare_nakamura_kun/