Is there another way? Yes, there is. Businesses should be making use of a domain name registration company to centrally administer all their domains. There are lots of very professional domain name registration companies that have been in business for years and that provide fully functional control panels that give their customers full control over their domain names. Then, all they have to do is change the name server details from their old host to their new host for each domain.
Once you choose your provider, it's time for you to open an account with the monthly plan that fits your needs. If you still have questions about which plan is suitable for you, call its customer support staff and have them assist you through the registration process. Companies will generally charge a credit card on a monthly basis, however, some companies will also offer discounts for paying a yearly payment at once.
On the plus side, SiteGround offers free automatic daily backups, access to the Cloudflare CDN, high-performance SSDs for all plans, unlimited email accounts and integration of the free LetsEncrypt SSL certificate into sites. The company does limit bandwidth and storage, but even those who claim to offer so-called unlimited bandwidth and storage really have some limits in its terms of service.