Repointing an AWS Lightsail Server

Hi all! I am migrating an AWS server to a newer server. Both the new and old server are set up with a Plesk/Ubuntu OS. We have migrated all the sites using the Plesk migrator, but I am wondering if there is a way to repoint the DNS records to the new server in a single process. We have done a few of these, but since those servers only had 2 or 3 sites we just went to our name.com site and individually repointed them. However, this server has 30 sites so this will be a lot more work and I am wondering if we can just repoint the old server to the new one in AWS. I looked through the Lightsail support docs, but I am only coming up with how to repoint individual sites that are in Route 53, which is not the case for us.

Any advice appreciated.