Perrine Monogatari, Ie Naki Ko Recommendations
The original novel Nobody's Girl was the spiritual successor to Nobody's Boy, and viewers of their respective anime series will find similarities as well. They are both fairly long series (51 and 53 episodes) from the 1970s, and have the same basic plots: heartwarming (sort of) orphan ends up going on a journey to find lost family and happiness. These often fun and cheerful shows are also full of tragedy and sadness (Remi more so than Perrine), and have honestly lovable characters that even those far older than the target audience will enjoy.
Both are stories originally from the same author and they share plenty of similarities. The progression of how the stories unfold is pretty comparable as well. Perrine is just a bit more cheerful, while Remi has a bit more dread, but they always know exactly when to turn things around for the best. Simply put liking one of these, you'll probably enjoy the other. And they also share the same wondrous composer.