BoiledFennel

long time red mall- yaoi, older uke younger seme
Dear sir/My ahjussi- yaoi, older uke 2 younger semes
How to make tasty milk- yaoi older uke, younger semes. Be we are of this one lmao

Miscreants and mayhem- is good if you don't like obvious age gap in terms of looks, but it has a weird father and son like dynamic so it can get weird
Plaything- there's some old action towards the end briefly

Alice in adulthood- yaoi- older seme younger uke. The uke looks like a kid but he's in college so ¯

https://www.mangago.zone/read-manga/old_fashioned_cupcake/ (this is very wholesome, One of them is 49 years old I think, the other is his colleague at work so definitely an adult)
https://www.mangago.zone/read-manga/boku_no_omawarisan/
https://www.mangago.zone/read-manga/saezuru_tori_wa_habatakanai/ (Yashiro is definitely +40)
https://www.mangago.zone/read-manga/3_ban_sen_no_campanella/
https://www.mangago.zone/read-manga/joou_to_shitateya/ (One of them is around 40....and he's hot)
https://www.mangago.zone/read-manga/naked_sword_and_tree_peony_of_black/ (both of them around their 40s)
https://www.mangago.zone/read-manga/itooshiki_hibi/ (one of them is 50, the other is 60)
https://www.mangago.zone/read-manga/koi_ga_ochitara/
https://www.mangago.zone/read-manga/hajime_no_koi_nishimoto_rou/
https://www.mangago.zone/read-manga/how_to_train_an_impatient_dog/ (Don't worry, unlike what the title suggests, this has nothing to do with dogs, it's a collection of one shots, and chapter 5 is my favorite of them all with a shy, adorable guy in his 50s who falls in love for the first time, with a young hot man)

I basically read everything you suggested but the first one (long time red mall)

BUT THANK YOU ILL READ IT RIGHT AWAY MWUAHH(づ￣ ³￣)づ

OH
I didn't read like 3 of them front his list, I'm particularly interested in the last one since they're short stories too!! (Thank u for specifying the dog thing, that actually was scaring me a bit lmao)
The more the merrier!!

THANK YOU VERY MUCH(づ￣ ³￣)づ

40 made ni shitai 10 koto

:: Age Gap ✎⋆.࿔*:･ (all except number 3, 4, and 10)
https://www.mangago.zone/home/mangalist/2439656/

https://www.mangago.zone/read-manga/long_time_red_mall/

https://www.mangago.zone/read-manga/open_board_dreamyzz/

https://www.mangago.zone/read-manga/love_for_sale_1/ (It’s been so long since I’ve read this tbh I’m not sure if he’s top or bottom)

All I can think of rn ╮(￣▽￣)╭ enjoy