Monster GLs:
https://www.mangago.zone/read-manga/bead_master/ (gumiho)
https://www.mangago.zone/read-manga/a_monster_wants_to_eat_me/ (mermaid)
https://www.mangago.zone/read-manga/dark_mermaid/ (mermaid)
https://www.mangago.zone/read-manga/seeking_a_beauty_in_the_east_sea/ (mermaid)
https://www.mangago.zone/read-manga/the_wind_spell/ (mermaid)
https://www.mangago.zone/read-manga/the_siren_s_light/ (siren)
https://www.mangago.zone/read-manga/the_sea_painted_by_the_moonlight/ (mermaid)
https://www.mangago.zone/read-manga/ryuu_to_ryuu_no_kekkon/ (dragon)
https://www.mangago.zone/read-manga/inari_no_kekkon/ (fox demon)
https://www.mangago.zone/read-manga/foxes_always_lie/ (fox demon)
https://www.mangago.zone/read-manga/akumade_amai_watashi_no_kanojo/ (succubus)
https://www.mangago.zone/read-manga/bai_lijin_among_mortals/ (fairy)
https://www.mangago.zone/read-manga/alcohol_and_ogre_girls/ (ogre)
https://www.mangago.zone/read-manga/mina_soko_nite/ (mermaid)
https://www.mangago.zone/read-manga/centaurs_worries/ (centaur)
https://www.mangago.zone/read-manga/unicorn_to_sabishi_gari_ya_shoujo/ (unicorn)
https://www.mangago.zone/read-manga/working_overtime_to_destroy_the_world/ (Cthulhu?)
https://www.mangago.zone/read-manga/the_subjugation_school_life_of_the_corpse_girl_and_the_love_heavy_knight/ (multiple different fantasy/mythological creatures)
https://www.mangago.zone/read-manga/beast_of_blue_obsidian/ (multiple different fantasy/mythological creatures)
https://www.mangago.zone/read-manga/isyuzoku_joshi_ni_suru_hanashi/ (multiple different fantasy/mythological creatures)
https://www.mangago.zone/read-manga/nonhuman_x_human_yuri_anthology/ (multiple different fantasy/mythological creatures)
https://www.mangago.zone/read-manga/heart_pounding_excitement_at_mononoke_girls_a/ (multiple different fantasy/mythological creatures)
https://www.mangago.zone/read-manga/succubus_ja_nai_mon/ (multiple different fantasy/mythological creatures)
Furry/characters with animal characteristics GLs:
https://www.mangago.zone/read-manga/sheep_princess_in_wolf_s_clothing/
https://www.mangago.zone/read-manga/love_allergy_syndrome/
https://www.mangago.zone/read-manga/surrendering_to_my_enemy_s_cold_embrace/
https://www.mangago.zone/read-manga/on_a_leash/
https://www.mangago.zone/read-manga/officer_you_can_no_longer_hide_your_tail/
https://www.mangago.zone/read-manga/my_food_seems_to_be_very_cute/
https://www.mangago.zone/read-manga/goshujin_sama_to_kemonomimi_no_shoujo_meru/
https://www.mangago.zone/read-manga/tsuki_ga_kirei_desu_ne_itou_hachi/
https://www.mangago.zone/read-manga/konohana_kitan/
https://www.mangago.zone/read-manga/nekomusume_shoukougun/
https://www.mangago.zone/read-manga/cat_maid_and_mistress/
https://www.mangago.zone/read-manga/isyuzoku_joshi_ni_suru_hanashi/
https://www.mangago.zone/read-manga/heart_pounding_excitement_at_mononoke_girls_a/
https://www.mangago.zone/read-manga/the_sisterly_situation_of_the_bakeneko_hazuki/
https://www.mangago.zone/read-manga/yamanko/
Any Monster girl x human girl yuri or something similar? Tysm :)