Move a Wordpress site for free with 10Up Site Migration
A quick shout-out to a tool I've used a few times now for easy site migrations - the 10Up Site Migration Tool.
A free, open-source alternative to the migration capabilities of tools like UpDraft, 10Up Site Migration has helped me move sites from standard Wordpress installations and multi-site installations with minimum hassle.
It does require command-line access, so if you're using a shared hosting platform that doesn't provide this then you might be out of luck (and that's where tools like Updraft come in!) but if you are hosting or developing on a server that you control, then I highly recommend you check it out,