 If you liked
Made in Abyss
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 ...then you might like
Arifureta Shokugyou de Sekai Saikyou
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Made in Abyss is not so different when we are talking about the passage where Nagumo is left in Labyrinth/Abyss and can't go up so he just goes down and meets lots of monsters/anomalies and after some time travels with a little girl. In Made in Abyss, the main characters go down to explore the abyss and look for someone on the bottom and in Arifureta, they go down to get out of the labyrinth.