I asked the same question recently. here's the reply:
[Here are some
Colored
1. https://www.mangago.zone/read-manga/form_of_sympathy/
2. https://www.mangago.zone/read-manga/open_board_dreamyzz/
3. https://www.mangago.zone/read-manga/young_lover/
Mangas
1. https://www.mangago.zone/read-manga/sayonara_alpha/
2. https://www.mangago.zone/read-manga/boyfriend_17/
3. https://www.mangago.zone/read-manga/revival_blue/
4. https://www.mangago.zone/read-manga/dreaming_vampire/
5. This magakas work are usually with age gap you can check it out
https://www.mangago.zone/read-manga/otona_wo_komaraserun_ja_arimasen/
6. https://www.mangago.zone/read-manga/kouguu_no_omega/
7. https://www.mangago.zone/read-manga/suki_ni_nacchau_yo/
8. https://www.mangago.zone/read-manga/houtou_musuko_to_koi_no_ana/
9. https://www.mangago.zone/read-manga/furenaide_ritorusuta/
10. https://www.mangago.zone/read-manga/nee_onnanoko_ni_shite_ageru/
https://www.mangago.zone/read-manga/old_fashioned_cupcake/
https://www.mangago.zone/read-manga/shock_my_favorite_online_beauty_streamer_showed_up_at_my_work_and_what_happened_next/
https://www.mangago.zone/read-manga/chotto_matte_yo_hanaya_san/
https://www.mangago.zone/read-manga/come_to_hand/
https://www.mangago.zone/read-manga/oh_my_hero/
https://www.mangago.zone/read-manga/himono_tokodoki_shanairen_ai/
https://www.mangago.zone/read-manga/i_didn_t_ask_you_to_eat_me/
Age-gap...most prefer if the older one is the uke. Thanks in advance (▰˘◡˘▰)