Hi,
I can definitely migrate your MySQL database from VPS to AWS and can connect this with Wordpress site to access the database remotely and according to the requirement, I have extensive experience with AWS, VPS, MySQL, PHP, Linux.
I have been developing large scale, robust, enterprise applications, which include SASS systems, CMS, portals and WordPress sites as well and very sure about your requirement.
Just drop me a message I am ready to initiate right away.
Best,
Sajal