Missing People: https://www.missingpeople.org.uk/appeal-search
Missing Persons Database: https://www.missingpersons.police.uk/en-gb/home

Description and photographs of each case:
https://evidenceofacrime.blogspot.com/2020/12/missing-people-appeal-uk.html

Crimeatorium:
https://linktr.ee/crimeatorium

Murder and More:
https://linktr.ee/murderandmore