Honestly, I've read a lot of other people's suggestions here. None of them come close to Gene Wolfe. The Book of the New Sun ruined other authors for me for years.

Nowadays I can enjoy something like The Expanse, or Children of Time, or Ancillary Justice... but they're not in the same league.

It honestly seems like people are recommending their favorites, or popular titles, but they certainly wouldn't be making the same comments if they've read Gene Wolfe.

I think we're in the same boat - nothing really comes close.