- Velvet Blues: old but has never given me trouble
- Better Search Replace (PRO): I own the pro version which has a dry run/ preview feature. But as of 2/2019 its not working on Dancers Group (waiting on their tech support).
- Search Replace DB script: Not a plugin but a script that is run via browser. I had a problem on dancers group with some tables until I changed the mysql collate setting on the table from latin1_swedish to utf8_general_ci or utf8_unicode_ci. This script has a good dry run / preview option. https://interconnectit.com/products/search-and-replace-for-wordpress-databases/