Suggest me a book for a sporadic holiday reader

Hello! I've been visiting this sub for a while and my TBR list has grown massively. Thank you for that!

My husband is a very sporadic reader. He'll not touch a book for months, then will burn through 7 in a week when we're on holiday, then will read 1-2 more when we're home before it fizzles out again. Now he's said he wants to read more, and somehow almost none of my books are interesting to him.

He usually likes crime/thriller books or series, think Ian Rankin, Stuart MacBride, Simon Beckett, Charlotte Link etc. He also loves the Rivers of London series by Ben Aaronovitch, but this is the most he can stomach when it comes to fantasy (he likes Harry Potter, he's considering Percy Jackson). Other books he liked were the first Joel Dicker books, Hello Kitty Must Die, and the books by German Author Andreas Eschbach (mystery/sci-fi-ish/thriller).

He likes contemporary books but not too contemporary (we're both in our late 30s), and especially he likes books where the time it's set in has no or little impact on the plot, that could be set in the 60s as well as the 2020s. He's not into anything too historic, he doesn't like most classics, he doesn't like open or unresolved endings. Romance is fine if it's not the main focus. He likes twists, secrets being uncovered, different locations. He's not good with unfamiliar names (couldn't get him into Icelandic thrillers at all, though he loved the show Trapped).

What he dislikes most are preachy books that try to sell a moral or glorify war/the military/religion/etc. Too much purple prose scares him off.

I'm looking forward to hearing your suggestions for this picky reader who'll tell you with absolute conviction that he's not picky at all, but can't find a book to read from the ~2k we have at home and on e-reader.

Thank you!