
These are all GLs:
Chubby characters:
https://www.mangago.zone/read-manga/a_model_advisory/
https://www.mangago.zone/read-manga/trash_flower/
https://www.mangago.zone/read-manga/after_school_adventure_1/
https://www.mangago.zone/read-manga/red_dot/ (short story; read the last 2 chapters on m@ngadex )
https://www.mangago.zone/read-manga/ol_and_big_girl/ (one-shot)
Plain characters:
https://www.mangago.zone/read-manga/girl_friends/
https://www.mangago.zone/read-manga/useless_princesses/
https://www.mangago.zone/read-manga/shoujo_manga_protagonist_x_rival_san/
https://www.mangago.zone/read-manga/yuri_is_forbidden_for_yuri_ota/
https://www.mangago.zone/read-manga/tadokoro_san/
https://www.mangago.zone/read-manga/sora_haena/
https://www.mangago.zone/read-manga/yuzu_and_rika/
https://www.mangago.zone/read-manga/shy_na_ano_ko_ni_natsukaretai/
https://www.mangago.zone/read-manga/rutou_san_ni_wa_kanaimasen/
https://www.mangago.zone/read-manga/yuri_yuri_panic/
https://www.mangago.zone/read-manga/girlfriend_limited_to_7_days/
https://www.mangago.zone/read-manga/winter_before_spring/
https://www.mangago.zone/read-manga/that_time_i_was_blackmailed_by_the_class_s_green_tea_bitch/
https://www.mangago.zone/read-manga/oni_ure_idol_ga_kyou_mo_watashi_wo_oshitekuru/
https://www.mangago.zone/read-manga/anemone_is_in_heat/
https://www.mangago.zone/read-manga/your_true_color/
https://www.mangago.zone/read-manga/hana_to_hina_wa_houkago/
Any recommendations where one of the couple is chubby/overweight or plain? Cute and fluffy! It can be the main character, or their love interest. Straight, bl, gl, I don't care.