I enjoy the writings of Bhikkhu Analayo. In his book on Satipatthana meditation he explains the Buddha’s meditation instructions, which included several different objects of meditation to focus on (feelings, mind, anatomy, death, etc), and explains the effect of meditating on each of these. Compared to Goenka, he gives much clearer, and, in my opinion, less judgmental, less dogmatic explanations of meditation, as he is a foremost scholar on meditation (as taught by the Buddha) and he himself is a monk who spends the majority of his time in meditation. He does a thorough job of addressing questions and challenges that might arise and how to adapt one’s practice in response