Hello! I'm looking for wonderful light novel recommendations. I tend to like novels that have interesting concepts, are emotionally moving, etc.

Examples:
The Legend of Sun Knight
(I found it to be extremely funny and I loved the brotherhood of the knights, so if there's anything similar please recommend!)
Hako no Naka
Shin Sekai Yori


Thank you!

Since you mentioned Hako no Naka, there'll be some BL novels among my recs. If you by any chance dislike BL or are not looking for it in this instance, feel free to ignore them.

Kino no Tabi - The Beautiful World (Novel)
No. 6 (Novel)
Utsuro no Hako to Zero no Maria (Novel)
Juuni Kokki
Baccano! (Novel)
Honoo no Mirage (Novel)
Ai no Kusabi
Cold Sands (Novel)
Feng Yu Jiu Tian (Novel)
Mimizuku to Yoru no Ou (Novel)
Rokka no Yuusha (Novel)
Shinrei Tantei Yakumo (Novel) + Ukikumo Shinrei Kitan (Novel)
Yume Nikki (Novel)
Reinoushiya Minato (Novel)
Zoo (Novel)
Summer, Fireworks, and My Corpse (Novel)

I would have suggested Kyou Kara Maou! (Novel), but the manga adaptation's getting regular scanlations so it'd probably be best to turn to that, and not the irregularly-released novel. Unless you can read Japanese or Chinese, of course.