If you're looking for manga similar to Tayo the Little Bus: Tayo's Toy Adventure - Mission Ace 2, you might like these titles.
WALL-E is a trash compactor robot — the last one of his kind! — and every day for hundreds of years he's faithfully cleaned and organized the millions of tons of trash left behind on Earth by humans. But his routine is flipped upside down when he finds a tiny green plant, the first new sign of life for centuries! When the sleek new robot EVE shows up to take the proof of life back to humanity, WALL-E falls head over wheels in love and eagerly follows her across the galaxy into a whole new adventure!
When Sasha is forced to leave her kittypet home, she must forge a solitary new life in the forest. Life on her own is exciting at first but quickly gets lonely. Then Sasha meets Tigerstar, leader of ShadowClan, and wonders whether she would be better off joining the ranks of his forest Clan. But Tigerstar has many secrets, and Sasha isn’t sure she can trust him….