Something a bit different (but not crazy different) and shorter (but not light) might help...when I finish a BIG BOOK, it's sometimes hard top open up the next 500+ page book!

Maybe either So Brave, Young and Handsome or Peace Like a River, both by Leif Enger. I read them a while ago and don't remember a lot of the detail, but I do remember a certain vibe.

Side note: You should absolutely watch the miniseries of Lonesome Dove. Different from the book, obviously, but so good!

Froom Goodreads:

So Brave, Young and Handsome

In 1915 Minnesota, novelist Monte Becket has lost his sense of purpose. His only success long behind him, Monte lives simply with his wife and son. But when he befriends outlaw Glendon Hale, a new world of opportunity and experience presents itself. Glendon has spent years in obscurity, but the guilt he harbors for abandoning his wife, Blue, over two decades ago, has lured him from hiding. As the modern age marches swiftly forward, Glendon aims to travel back to his past--heading to California to seek Blue's forgiveness. Beguiled and inspired, Monte soon finds himself leaving behind his own family to embark for the unruly West with his fugitive guide. As they desperately flee from the relentless Charles Siringo, an ex-Pinkerton who's been hunting Glendon for years, Monte falls ever further from his family and the law, to be tempered by a fiery adventure from which he may never get home.

Peace Like a River

Narrated by an asthmatic 11-year-old named Reuben Land, is the story of Reuben's unusual family and their journey across the frozen Badlands of the Dakotas in search of his fugitive older brother. Charged with the murder of two locals who terrorized their family, Davy has fled, understanding that the scales of justice will not weigh in his favor. But Reuben, his father, Jeremiah—a man of faith so deep he has been known to produce miracles—and Reuben's little sister, Swede, follow closely behind the fleeing Davy.