Hi, I fully understand the need to read something lighter. I used to be an avid reader but a combination of failing eyesight and the anxieties of life has practically stopped me. When my dad became terminally ill I found re-reading Terry Pratchetts Discworld on a loop got me through for a few years, then just as I started to trust new books, losing my husband sent me back there. Do you have any books that created a comforting world that you'd like to revisit? Re-reading takes no effort at all.
I recently read a charming wee book Before the Coffee Gets Cold by Toshikazu Kawaguchi. It's time travel with a difference - the time travel is severely limited, you remain seated, can only travel to meet people who have visited the cafe, and you cannot change the present. You get one chance and have to leave before the coffee gets cold. So within those limits we have a book that explores people's lives and relationships. I found it utterly charming. I like any book that touches me and leaves me with a wee smile.
I second Anne Tyler, Ladder of Years is one that I really enjoyed.
The latest book I have finished is Lessons in Chemistry by Bonnie Garmus which again was a quick easy read but a lot less comfortable. This poor woman was trying to live an independent life in an utterly misogynistic 1950s society without compromising her beliefs. I really enjoyed it although at times I felt like screaming at her 
Audio books can be good if you can't find the time or light enough to read. Audible is out there but so is BBC Sounds. There are serialised books on that app.
Finally it might be worth switching genres. My Mum used to love gory murders, all these pathologists and detectives working on cases, but lately she has switched to family sagas, wartime romances and the like. Good luck with finding something to read.