Had to do this today, would have helped to have a bit of a process written down…

• Check if page ranks for anything
• if it does, then consider redirecting (301ing) to most relevant/related page (in regards to what it ranks for)
• 410 is better than 404 according to Yoast – for a deleted page
• Remove internal links from page copy etc and menus (crawl site if poss)

https://yoast.com/deleting-pages-from-your-site/