Guidebooks are rather obsolete the moment they get off the press. I would advise you to get the latest of several resources from your library to determine your itinerary. I use Booking.com or similar sites for hotels. After that, start to research your sites to get the details, such as "closed on Tuesdays," "advanced purchase tickets needed", etc. I use Trip Advisor forums a lot for planning questions and once I'm there. There are "pros" who give very good advice. You quickly learn which ones just offer good advice and not necessarily their services.
Anything written before or during the pandemic might not be helpful. Hotel and restaurants often changed their names or went out of business. For every museum, church or site you wish to visit, go to their website for the most current info.
Rick's books are helpful for general planning, esp the itinerary, but not necessarily hotels and restaurants. Most are not listed in his books.