Oricon (Japanese research organization) released its weekly Light Novel ranking for the week of 2024/12/30.
※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: Is It Wrong to Try to Pick Up Girls in a Dungeon? 20 (Special Edition with Booklet)

DanMachi Series: Two Monthly Releases Begin!
The first release includes an exclusive booklet featuring a new story by Fujino Omori and a guest illustration collection.

[This eBook is available for a limited time from December 15, 2024, to May 15, 2025.]
Note: Content overlaps with the eBook version of "Is It Wrong to Try to Pick Up Girls in a Dungeon? 20".

The Special Edition features a brand-new short story by Fujino Omori, New Days of Abundance, as well as a luxurious guest illustration collection celebrating Volume 20!

4th place: Campfire Cooking in Another World with My Absurd Skill 16: Meuniere of White Fish × Dragon's Funeral

A Salaryman Summoned as a Hero to Another World—
Mukouda, transported from modern Japan to another world, receives advice from Carelina's Guild Master to "at least meet the king once." Mukouda reluctantly heads to the capital of the Leonhardt Kingdom, hoping to request help with dismantling the colossal "Leviathan" he defeated. Yet, nothing goes as planned.
From being escorted directly to the royal castle by the King's Guard to mishandling his gifts for the king and dealing with his companions' disruptive behavior during the audience, Mukouda's journey is filled with complications. The Leviathan's dismantling becomes a massive operation requiring reinforcements from across the land. Amid unexpected reunions and new acquaintances, Mukouda's challenges with the Leviathan continue to escalate.
An over-the-top isekai adventure tale with over 1.3 billion views on "Shousetsuka ni Narou," Volume 16 shakes the royal capital!