The 5-step guide recommends assessing a potential home tutor's qualifications, subject knowledge, teaching ability during a trial lesson through evaluations, and likability and passion based on the child's feedback to find the best fit for tutoring. Parents should check that tutors have at least a degree or 5 years experience, score at least 85% on knowledge assessments, and meet minimum evaluation scores during a lesson observation sit-in. Feedback is also welcomed to improve the tutor selection process.