I don't remember if it's the top specifically, but these are all GLs with clingy characters:
https://www.mangago.zone/read-manga/oni_ure_idol_ga_kyou_mo_watashi_wo_oshitekuru/
https://www.mangago.zone/read-manga/shoujo_manga_protagonist_x_rival_san/
https://www.mangago.zone/read-manga/adachi_to_shimamura/
https://www.mangago.zone/read-manga/the_barefoot_nina/
https://www.mangago.zone/read-manga/i_love_amy/
https://www.mangago.zone/read-manga/useless_princesses/
https://www.mangago.zone/read-manga/my_cute_little_kitten/
https://www.mangago.zone/read-manga/love_gives_me_superpowers/
https://www.mangago.zone/read-manga/hazue_and_tsuyu/
https://www.mangago.zone/read-manga/akazukin_ni_taberareta_oukami/
https://www.mangago.zone/read-manga/yuri_yuri_panic/
https://www.mangago.zone/read-manga/yuzu_and_rika/
https://www.mangago.zone/read-manga/watashi_to_kanojo_no_kawaii_koi_no_hajime_kata/
https://www.mangago.zone/read-manga/kao_dake_yoi_classmate_ga_yatara_to_guigui_kuru_yuri_no_hanashi/
https://www.mangago.zone/read-manga/yume_to_koi_dewa_tsuriawanai/
https://www.mangago.zone/read-manga/that_time_i_was_blackmailed_by_the_class_s_green_tea_bitch/
https://www.mangago.zone/read-manga/girlfriend_limited_to_7_days/
https://www.mangago.zone/read-manga/genjitsu_sekai_real_demo_shiawase_ni_shite_kudasai_ne/
https://www.mangago.zone/read-manga/foxes_always_lie/
https://www.mangago.zone/read-manga/koharu_to_minato_watashi_no_partner_wa_onna_no_ko/
https://www.mangago.zone/read-manga/mietemasu_yo_aizawa_san/
https://www.mangago.zone/read-manga/my_ex_girlfriend_became_my_boss/
https://www.mangago.zone/read-manga/shy_na_ano_ko_ni_natsukaretai/
https://www.mangago.zone/read-manga/unnie_i_like_you/
https://www.mangago.zone/read-manga/akumade_amai_watashi_no_kanojo/
https://www.mangago.zone/read-manga/sherbet_above_the_sea_of_fog/
https://www.mangago.zone/read-manga/seeking_a_beauty_in_the_east_sea/
https://www.mangago.zone/read-manga/dang_e_yi_yu_dao_bing_jiao/
https://www.mangago.zone/read-manga/is_it_normal_to_raise_a_yandere_heroine_as_a_villainess/
https://www.mangago.zone/read-manga/my_angel_childhood_friend_was_a_gal_when_we_met_again/
https://www.mangago.zone/read-manga/please_bully_me_miss_villainess/
https://www.mangago.zone/read-manga/our_yuri_started_with_me_getting_rejected_in_a_dream/
https://www.mangago.zone/read-manga/i_favor_the_villainess/
https://www.mangago.zone/read-manga/yandere_meruko_chan_likes_her_senpai/
https://www.mangago.zone/read-manga/asagao_to_kase_san/ (SEQUEL: https://www.mangago.zone/read-manga/yamada_to_kase_san/)
https://www.mangago.zone/read-manga/gal_maid_villainess_only_milady_s_happy_end_will_win/
https://www.mangago.zone/read-manga/takane_san_and_arashi_chan/
https://www.mangago.zone/read-manga/tokubetsu_na_chuutohanpa/
https://www.mangago.zone/read-manga/how_do_i_get_together_with_my_childhood_friend/
https://www.mangago.zone/read-manga/love_me_like_i_do/
https://www.mangago.zone/read-manga/chirizokonai_no_hiraeth/ (suicide and suicidal ideation)
https://www.mangago.zone/read-manga/love_thy_neighbor_2/ (age gap, adultery, toxic relationship, religious themes and imagery)
Any GL recs with a clingy or crybaby top