If you're looking for manga similar to Chi's Sweet Adventure 2nd Season, you might like these titles.
Fukumaru is a big, unusual-looking cat who has spent a long time sitting in the pet store waiting for a home. He's almost a year old, and the shop's customers only seem to want tiny kittens. Then one day a miracle happens - an older man comes along and takes him home! Thus begins the heartwarming everyday life of a cat who only wants to be loved and a lonely man who is delighted to give him the love and happiness he deserves.
The tale of cats Kuroji and Marble, one of which is quite large and the other is small. They live with Miyaka Miyano, a young woman who can't quite get her life together.
What's Michael? Michael is a cat. A cat that is inexplicably attracted to the smell of raw fish, yet horribly repulsed by the smell of toothpaste. A cat that, in a dogfight with a fly, will strafe his master in her sleep. In short, Michael is a cat like any other cat.
A story featuring the everyday life of a domestic cat owned by an old lady who runs a local provision shop.
A delightful series of vignettes in the life of a kitten and her doting owner. To a young kitten, even the most mundane things appear fresh and exciting (and sometimes unpleasant or scary). Join FukuFuku on her journey and rediscover the world from a tiny cat’s point of view.
The manga follows the daily life of a household that has two cats: Azuki and Daizu. Azuki and Daizu belong to an office worker in her 30s who loves cats. The owner lives with her father, mother, grandfather, and older brother, the latter of whom the cats call "Megane" (Glasses). Megane adopted a Shiba Inu dog named Mamenosuke after Mamenosuke's owner died. Mamenosuke grew up around cats so he actually thinks of himself as a cat.