Older uke
http://www.mangago.zone/read-manga/almost_paradise/
http://www.mangago.zone/read-manga/kyou_mo_ashita_mo_asatte_mo/
http://www.mangago.zone/read-manga/otoko_yamome_mo_hana_ha_saku/
http://www.mangago.zone/read-manga/joou_to_shitateya/
http://www.mangago.zone/read-manga/2ban_me_no_alpha/
http://www.mangago.zone/read-manga/jokyouju_no_hatsukoi_case_study/
http://www.mangago.zone/read-manga/the_rain_in_montecarlo/
http://www.mangago.zone/read-manga/lover_boy_lezhin/?av=3
http://www.mangago.zone/read-manga/bokura_no_negai/
http://www.mangago.zone/read-manga/on_doorstep/
http://www.mangago.zone/read-manga/mujaki_na_wanko_to_nekokaburi/
http://www.mangago.zone/read-manga/young_good_boyfriend/
http://www.mangago.zone/read-manga/oniisan_to_yobinasai/
For more Age gap you can check out my list
http://www.mangago.zone/home/mangalist/607063/
Can someone recommend some manga with older uke? Prefer big age gap. Thank you :D