These are all GLs; some feature both hating each other, while some feature one-sided hate:
https://www.mangago.zone/read-manga/my_dear_enemy/
https://www.mangago.zone/read-manga/partition/
https://www.mangago.zone/read-manga/this_world_is_mine/
https://www.mangago.zone/read-manga/on_a_leash/
https://www.mangago.zone/read-manga/miss_forensics/
https://www.mangago.zone/read-manga/gunbured_x_sisters/
https://www.mangago.zone/read-manga/rock_it_girl/
https://www.mangago.zone/read-manga/itd_would_be_great_if_you_didnt_exist/
https://www.mangago.zone/read-manga/accept_my_fist_of_love/
https://www.mangago.zone/read-manga/getting_to_know_grace/
https://www.mangago.zone/read-manga/alter_ego_1/
https://www.mangago.zone/read-manga/warning_beware_of_the_dog_zephyr_scans/
https://www.mangago.zone/read-manga/ebisu_san_and_hotei_san/
https://www.mangago.zone/read-manga/black_white_sal_jiang/ (violence, toxic relationship)
And not the usual “we’re classmates who can’t stand each other” or similiar, i mean, they truly have to hate each others at the beginning.
Both bl and gl are appreciated