Well, 'Bonding in the Depths' is another interesting one. It focuses on the relationships between different characters in the Abyss. It shows how they rely on each other, grow together, and face the terrors of the Abyss as a team. It's a heartwarming and exciting read.
The answer is yes. Made in Abyss began as a novel. This original form allowed the creator to lay out the core ideas and storylines that were later brought to life in other visual and narrative formats.
The Made in Abyss manga is on hiatus for now. Maybe the author needs time to flesh out the story or there could be other behind-the-scenes factors affecting the schedule.