Ughh live laugh love age gap. Here are some faves:
9 years, angsty, teacher x ex-student https://www.mangago.me/read-manga/form_of_sympathy/
16 years, cute! office worker x musician/college student https://www.mangago.me/read-manga/first_of_summers/
12 years, politician x boxer https://www.mangago.me/read-manga/peace_of_god_mgs/
8 years, rich heir x poor college student https://www.mangago.me/read-manga/daily_part_time_job/
10 years, art collector?? x artist, art so good https://www.mangago.me/read-manga/diamond_dust_yaoi/
10 years or something, gangster x student, funny turns a bit dark at one point https://www.mangago.me/read-manga/2020_mgs/
10 years?? forgot, office coworkers, https://www.mangago.me/read-manga/on_or_off/
10+ years, office coworkers, cute!!! https://www.mangago.me/read-manga/40_made_ni_shitai_10_no_koto/
7 years?? funny, office worker x college https://www.mangago.me/read-manga/sour_or_astringent/
13 years, cute, passion spin off, may or may not need to read passion on the side https://www.mangago.me/read-manga/passion_raga/
20 years? Absurd, funny https://www.mangago.me/read-manga/the_kang_s_yeesu/

I've read a couple : one room TA, the tamings, and blossoms of the white night. I really like this trope and read a bunch so does anyone have any recommendations for more?