It's great to hear you love reading Rommes, as you're at a B1 level and not into sci-fi I have a few suggestions for you, here are a some of the books i've read recently and really enjoyed them.
Pride and Prejudice - by Jane Austen
he Curious Incident of the Dog in the Night-Time - Mark Haddon
About a Boy - Nick Hornby
The Girl on the Train - Paula Hawkins
Sherlock Holmes -Arthur Conan Doyle
Hopefully you can check these out and see if there are any that you would be interested in,
Happy reading!