For those interested in exploring the "ojisan" archetype in more mainstream, safe-for-work anime and manga, there are several popular titles that focus on different themes:
If looking for information regarding specific adult titles, it is important to note that such content is regulated and typically hosted on age-restricted platforms rather than mainstream streaming services. ojisan de umeru ana english
A lighthearted romantic comedy following an office worker who has a fondness for marshmallows and his interactions with a younger colleague. For those interested in exploring the "ojisan" archetype