It depends on the work in question, honestly. Certain genres call for a specific voice that only certain fonts can achieve. For Craig’s Luke Fischer novels, I use Electra because it has a crisp feel to it that feels reminiscent to the crime novels his work reminds me of. For a novel that might fall into the realm of historical fiction, I’d use Hoefler for its antiquated look to make the novel feel it’s from the time period it’s emulating. Literary works? I’d use Janson or something similar for a clean look that silently asks you to take your time with the novel and to leave no stone unturned as you read the novel on a sentence-to-sentence level.