If you're looking for manga similar to Line Offline Salaryman, you might like these titles.
Calico Tapio Chatorazawa, who's got more energy than anyone, Russian Blue Kuehiko Roshihara's a bit of a sourpuss. These two classmates will do all kinds of different jobs to learn how fun and hard it is to work!
A 4-koma about a humanoid rabbit salaryman's daily life shared with his human wife and their hybrid rabbit-child.
Lion, Lizard and Toucan and more wild animals are working together at this company. Forget about savanna or law of the jungle. Their work-life is cute, funny and tough. Just like yours. Short comedy stories for all who are working today!