Quick Link
https://github.com/romanvolodin/dynamic_parent
Pricing
free
CGDive Review
Dynamic Parent addon (free)
My top recommendation in the Dynamic Parent Category is the free (and aptly named) “Dynamic Parent” addon.
Embed GitHub
You will find other similar paid addons in this category They are presented for completeness or in case this free addon stops working. The “Grab-it” addon works slightly diffidently so it may be worth taking a look to see if it solves the problem better for your specific use-case.