I want to move my Squarespace to another host

Depends on what types of hosting you would like to move forward:

Most of managed hosting companies offer such migration service, for free. Just simply head over to their sites and ask for a support. Make sure you get a positive answer from them before making payments.

In the case of a unmanaged hosting, you're all on your own for everything. Since website migration is relatively a technical and time-consuming task even for techies, thus, if you currently do not have sufficient expertise on that, hiring an expert is a wise way to go. Aside from that, pretty much all of control panels on the block today include migration feature, however, most of them come with a major limitation requiring the installation of their services on the destination server. This way, they are actually more services than tools. The real tool you can give a try is a desktop app - VPSrobots, which perfectly supports migration between different VPS and providers. For example, from Linode to Vultr or DO. Check their doc for how to migrate: https://vpsrobots.com/documents/how-to-transfer-migrate-a-website-with-vpsrobots.html

Thus, here are 3 solutions for you:

• Choose a hosting company or control panel you want to move to and use their service

• Hire an expert

• Do it by yourself with VPSrobots

Hope this helps!