One example could be 'The Age of Innocence' by Edith Wharton. It delves into complex relationships, unrequited love, and the constraints of society on relationships, which can be somewhat related to the exploration of relationship tensions without being explicit.
The very first Jack Reacher novel was 'Killing Floor'. This book kickstarted the popular series and captured the imagination of many readers with its engaging storyline and strong protagonist.
Definitely 'The Killing Floor'. This novel gives you a full - fledged introduction to Jack Reacher. You'll be immediately drawn into his world where he arrives in a small town and gets caught up in a complex web of mystery and danger. It's a great starting point as it shows how he uses his military background and sharp intellect to solve problems, and it makes you eager to read more about his adventures.