Thriller book recommendations

I have a train journey and need some thriller (or non thriller but good fiction novel) recommendations.
I've liked Agatha Christie's works and have read some of her famous and lesser known works.
Recently finished To Kill a Mockingbird for a change of pace and the Hidden Hindu trilogy (pretty good plot wise NGL, kept me on the edge)
Need some good underrated thrillers that'll keep me on turning pages.
I've liked The housemaid, Robert Langdon series for ref.
I do have Verity and Silent Patient with me but need something else as well, would be a combined 30 hours of journey so need some good recomms!

vlr people can't read a 4 line paragraph let alone a whole book bro not the place to ask this

i read every agatha christie book growing up, she was my favorite author, so hopefully our tastes align a little

these are books i read this year that i would consider thrillers. i enjoyed all three
 
negative space - b. r yeager
death sentences - kawamata chiaki
grotesque - natsuo kirino

did you read all 3 parts of hhh?

crime and punishment
the trial

If you didn't then read and then there were none . Also you can try the famous five books