That one that I gave you first is the only that I have where she's just an actual child
This ones now are where they have previous knowledge and they're rofan btw
https://www.mangago.zone/read-manga/i_ll_be_the_matriarch_in_this_life
https://www.mangago.zone/read-manga/i_became_the_male_lead_s_adopted_daughter/
https://www.mangago.zone/read-manga/suddenly_became_a_princess_one_day/
https://www.mangago.zone/read-manga/the_tyrant_wants_to_live_honestly/
https://www.mangago.zone/read-manga/i_played_the_role_of_the_adopted_daughter_too_well/
https://www.mangago.zone/read-manga/i_am_the_precious_daughter_of_the_greatest_villain_in_the_fantasy_world/
https://www.mangago.zone/read-manga/i_became_the_despised_granddaughter_of_the_powerful_martial_arts_family/
https://www.mangago.zone/read-manga/preference_for_the_possessor/
https://www.mangago.zone/read-manga/baby_tyrant/
https://www.mangago.zone/read-manga/i_m_being_raised_by_villains/
https://www.mangago.zone/read-manga/a_saintess_who_was_adopted_by_the_grand_duke/
https://www.mangago.zone/read-manga/a_saintess_who_was_adopted_by_the_grand_duke/
https://www.mangago.zone/read-manga/can_we_become_a_family/
https://www.mangago.zone/read-manga/the_villainess_is_shy_in_receiving_love/
https://www.mangago.zone/read-manga/i_adopted_a_villainous_dad/
https://www.mangago.zone/read-manga/lord_baby_runs_a_romance_fantasy_with_cash/
https://www.mangago.zone/read-manga/the_monster_duchess_and_contract_princess/
https://www.mangago.zone/read-manga/talented_baby_squirrel/
https://www.mangago.zone/read-manga/i_was_just_having_fun_with_the_time_limit/
https://www.mangago.zone/read-manga/how_to_be_a_dark_hero_s_daughter/
https://www.mangago.zone/read-manga/the_villains_favorite_is_me/
Not sure if you will lile them but they are pretty diverse
Ohh I almost forgot to put this one on the rofan part https://www.mangago.zone/read-manga/i_was_just_having_fun_with_the_time_limit/
This ones are action, but I'm not sure if they all aply since some are more like teens that a child
https://www.mangago.zone/read-manga/the_reincarnated_assassin_is_a_genius_swordsman/
https://www.mangago.zone/read-manga/chronicles_of_the_martial_god_s_return/ this one has childcare so not exacly what you're looking for
https://www.mangago.zone/read-manga/swordmaster_s_youngest_son/
https://www.mangago.zone/read-manga/living_as_the_enemy_prince_sellascans/
https://www.mangago.zone/read-manga/academy_s_genius_swordmaster/
https://www.mangago.zone/read-manga/the_terminally_ill_young_master_of_the_baek_clan/
https://www.mangago.zone/read-manga/the_regressed_son_of_a_duke_is_an_assassin/
https://www.mangago.zone/read-manga/the_dark_magician_transmigrates_after_66666_years/
https://www.mangago.zone/read-manga/margrave_s_bastard_son_was_the_emperor/
Plz recommend colored webtoons or manhwa of ANY genre where the main character is a child it can be either a real child or an adult who was isekai'd into a child and they don't have to stay a child for the whole story here are some examples that I liked that you might also!!! I just want mc to be a kid!!
(Action)
https://www.mangago.zone/read-manga/the_beginning_after_the_end/
(Bl)
https://www.mangago.zone/read-manga/rebirth_1/
(Royalty/rags to riches)
https://www.mangago.zone/read-manga/my_mom_entered_a_contract_marriage_bored_corona_kids_version/