Cacher is the code snippet organizer for pro developers

WEBSITES

PAID
Solid Backups (formerly Backup Buddy)
https://ithemes.com/purchase/backupbuddy/
-- I have lifetime license: unlimited site backup, lifetime plugin updates and one year of support forum access
$150 / unlimited (this is what I purchased)

FREE
Migrate Guru - https://wordpress.org/plugins/migrate-guru/
(recommended by Sridhar Katakam on Slack and Nat Miletic on Twitter) - For migration only, no backups

All in One WP Migration (AIO) - https://wordpress.org/plugins/all-in-one-wp-migration/ 
(used by Sridhar Katakam) (512MB limit on import; $49 for lifetime license to remove limit)
INSTRUX. for removing limit in my snippet: 
https://app.cacher.io/library/personal?snippet=aac20897e1965b500816

https://updraftplus.com/ - https://wordpress.org/plugins/updraftplus/
-- https://updraftplus.com/faqs/how-do-i-migrate-to-a-new-site-location/
-- Great reviews. $145/developer license for unlimited sites. BUT only 1 year of updates. 40% discount to update license each year.
-- Most popular free plugin on WordPress repository. 
• The free version of UpdraftPlus allows you to migrate your WordPress website by downloading backups from your source website, and then restoring them onto the destination site. 
• site duplicator & migrator, with which you can copy sites and move them to new location
• schedule backups – no need to remember if you have made a backup, just set a schedule and 
automatically backup your website every day, week or month. You can also have separate schedules 
for files and databases.
• good reporting allowing you to see the status of backups and when the next backup is scheduled. 

Duplicator and WP Migrate DB - used together for copying files and migrating db
https://wordpress.org/plugins/duplicator/

WP Migrate DB (THE best tool for migrating the DB) - https://deliciousbrains.com/wp-migrate-db-pro/
http://wp.tutsplus.com/tutorials/plugins/migrating-your-wordpress-database-wp-migrate-db-development-to-production/
http://wp.tutsplus.com/tutorials/plugins/migrating-your-wordpress-database-wp-migrate-db-production-to-development/

Duplicator https://lifeinthegrid.com/labs/duplicator/
Had difficulty with the PHP being "active", so I used Duplicator to copy the files into a .zip archive. Very fast. 
But, missing the .htaccess file, which I had to manually clone via ftp and copy the contents given to me inside the Permalinks page.

WP Staging - https://wordpress.org/plugins/wp-staging/
Looks great! Must try out!

Backup Migration - https://wordpress.org/plugins/backup-backup/
Recommended on https://learn.wordpress.org/lesson/migrating-your-site-part-1-changing-to-a-new-host-and-domain/

InstaWP connect - https://wordpress.org/plugins/instawp-connect/
InstaWP Connect – 1-click WP Staging & Migration
Create a staging WordPress site from production (live site). Ideal for testing updates, version change or re-write. Sync back only the changes.

Xcloner https://wordpress.org/plugins/xcloner-backup-and-restore/

https://www.wpbeginner.com/plugins/7-best-wordpress-backup-plugins-compared-pros-and-cons/

WPclone

https://www.navicat.com/en/products/navicat-for-mysql

Updating the URLS or other text in a db:

If you move the site and images, links or other files are not relative, you can use this script to edit them all at once.
https://interconnectit.com/products/search-and-replace-for-wordpress-databases/
https://wordpress.org/plugins/velvet-blues-update-urls/ - closed in 2024
https://wordpress.org/plugins/better-search-replace/ 
For migration and/or cloning site locally: A simple plugin for updating URLs or other text in a database. 

1.22.18 - Other recommendations on Int. WP FB page - What I use
https://www.idrive.com/

1.22.18 - recommended by recommended by many people on Genesis Slack channel and Theresa Jennings on Int. WP FB page
https://www.backblaze.com/
-- Personal Backup - Never lose a file again. Get unlimited cloud backup for your Mac or PC. Just $5/month.

https://www.macupdate.com/app/mac/13803/superduper - SuperDuper for making bootable backup

WD USB Drive - plug into USB portal in back of computer so that it gets enough power
-- David's wedding files
-- ASK Design folder
-- Current Projects