@SEALS3051 well there are a few but my personal favorites are
My Recently Hired Maid Is Suspicious- it's really cute....that's all
Kuchi ga Saketemo Kimi ni wa (2019)- good but short (also there's different versions of it)
Yankee Shota to Otaku Onee-san- adorably precious (but the translated chapters stopped until vol 2 since crunchyroll bought the licenses to it, those bastards)
14 sai no koi- the main couple aint an age gap but the side are, overall really good story tackling different types of relationships and love
Misetagari no Tsuyuno-chan- ok this one isnt really that much of an age gap but it is cultured
look the age gap genre only works when it's not the older one pursuing the younger one (i mean there r ones that are good but only when it's done in a comedic manor, if not most of the times it just comes off as creepy)
idk this is just my personal taste though so if u not hot on age gaps and shotas u probably wont like it as much