Hi! Not all are exact but here's a bunch of older ukes:
http://www.mangago.me/read-manga/houtou_musuko_to_koi_no_ana/
http://www.mangago.me/read-manga/himono_tokodoki_shanairen_ai/
http://www.mangago.me/read-manga/kore_de_saigo_no_koi_ni_shitai/
http://www.mangago.me/read-manga/mesuiki_x_ureoji_bl/
http://www.mangago.me/read-manga/coming_1/
http://www.mangago.me/read-manga/kore_mo_shigoto_desu/
http://www.mangago.me/read-manga/koi_wo_suru_tsumori_wa_nakatta/?PTTk
http://www.mangago.me/read-manga/shoushin_otoko_ni_haru_no_arashi/
http://www.mangago.me/read-manga/soshite_boku_wa_koi_wo_shiru/
http://www.mangago.me/read-manga/mother_s_spirit/
^ (?) I'm not too sure
http://www.mangago.me/read-manga/kitto_oujisama_ga_nante/
http://www.mangago.me/read-manga/itadakimasu_gochisou_sama/
http://www.mangago.me/read-manga/chotto_matte_yo_hanaya_san/
http://www.mangago.me/read-manga/pink_to_mameshiba/
http://www.mangago.me/read-manga/ijiwaru_shinai_de/
http://www.mangago.me/read-manga/vanilla_chocolate_cigarette/
^ The established couple has the older uke
http://www.mangago.me/read-manga/yukidoke_no_koi/
http://www.mangago.me/read-manga/ai_ni_dekinai_koi_wa_iya/
http://www.mangago.me/read-manga/kainarasu_hazuga_aegasarete_komattemasu/
http://www.mangago.me/read-manga/yowamushi_danshi_renai_hajimemasu/
http://www.mangago.me/read-manga/24_jikan_ochi_nai_kiss/
http://www.mangago.me/read-manga/soshite_boku_wa_koi_wo_shiru/
If you liked these then consider checking my lists out:
http://www.mangago.me/home/mangalist/853996/
http://www.mangago.me/home/mangalist/932570/
Enjoy!
wahhhhh~, thank you very much!!! <3
i really appreciate this uwu~ thank you very muuuch!!!
hiii so i just read Here U Are and im absolutely obsessed with uncle pan and qiujie's relationship AAAAAAAA can you guys recommend me some book wherein there is an age gap and the older guy wouldnt take the younger guy seriously at firsttttt but then realizes that he actually likes the younger guy a lottttt???? id appreciate your help very muchhhh thank youuu uwu