Oricon (Japanese research organization) released its weekly Light Novel ranking for the week of 2024/12/02.
※The English titles of works may not always be accurate as some have not been released overseas. Thank you for your understanding.

Related rankings are compiled here
Oricon Comic Ranking Summary

5th place: I Was Almost Killed by My Trusted Companions in a Dungeon, but with the Gift "Infinite Gacha," I Recruited Lv. 9999 Allies and Will Have Revenge on My Former Party and the World! Vol. 11

Mera faces an unprecedented crisis against enemies exceeding Level 9000. Meanwhile, Light discovers that his long-lost brother is within the demon kingdom of "Master." Leading Mei, Aoyuki, and Nazuna, Light embarks on a mission to rescue him.

As the three strongest members of "Abyss" join Light in a world-shaking showdown against the Master demons, can Light save his brother—who has turned against him—without causing harm?
In this ultimate "gacha" fantasy, Light and his allies take on their most difficult mission yet!

4th place: Junior High School DxD 2: Amon’s Parent-Teacher Visit

In an effort to escape her lonely life, Zekka enrolls at Kuoh Academy and begins a lively new chapter as a member of the Occult Research Club. However, one day...

"—Avi Amon-sama, you are my master."
A demon butler named Elter appears as a classmate, introducing himself under orders from Avi's mother. Avi must clear Elter’s trial as a potential servant candidate, or she risks being taken back as the next family heir.

To help her friend, Zekka throws herself into action, showing off both her sword skills and her... assets. Amid the chaos, she also receives a miko (shrine maiden) outfit from upperclassman Akeno and even faces a surprising proposition:
"You wish to summon me—a contract demon—to serve Miyamoto-sama personally?"
More fateful encounters await in this latest installment!