I would suggest you read Sensible Cruising by Don Casey and Cost Conscious Cruiser by Lin and Larry Pardey. They won't suggest boats as much but offer some ideas about what to look for. In fact pretty much anything by these 3 authors would be good.
Also, look at reviews and articles here on Sailnet. All are excellent in my opinion and best of all the Sailnet articles are free.
You can also look here for some specifis boats BoatUS Boat Reviews