If you’re new to researching English ancestry or could do with a refresher, I recommend viewing Paul Milner’s talk for Legacy Family Tree Webinars given on Wednesday evening. It’s free at the Legacy Family Tree Webinars site until 16 September. For webinar members, there’s an eight-page handout with additional information not covered in the talk, some new to me.
https://familytreewebinars.com/webinar/tracing-your-20th-century-english-ancestors/