Ending informal email in english

https://english.stackexchange.com/questions/332/which-expressions-can-be-used-to-close-an-email

https://www.english-at-home.com/business/how-to-start-and-end-a-business-english-letter-or-email/

https://www.vestner.de/1077f7/1c0c4d-informal-email-phrases

http://languagelearningbase.com/257/how-to-end-emails