If you're looking for manga similar to Tarepanda Goes on an Adventure, you might like these titles.
Chocopa is a baby panda that loves chocolate! He eats chocolate all the time. One day when he's eating his favorite chocolate, his white fur turned to chocolate color all the sudden. Now he looks more like a bear. But don't worry. Chocopa just needs to drink milk to get his white fur back, then he's a panda again!
A little girl named Yomigi-chan shares an apartment with her panda friend, Daifuku.
Sasatake Noko is crazy about pandas, and she has all sorts of panda stuff at her house. One day, a new girl panda arrived from China to join the panda at Ueno Zoo, and there were rumors that the new panda might even be pregnant! Noko showed up to greet the truck carrying the new panda, but noticed that the back door seemed slightly open when it went by. Then she noticed a small, kind of rat-like animal on the ground. After taking it in, Noko realized it was an infant panda, which must have been birthed in the truck and fallen out. Now she has achieved her dream of having a panda of her very own, and she's determined to raise it herself!