Please excuse my effrontery. One of the many reasons I participate and try to contribute to this forum, is to learn from other website owners, server administrators and web hosts, what it is that their clients want, and how to best to satisfy them.
With the above in mind, I am curious to know what exactly you may want to execute that requires a root SSH access.
Root access is akin to having the keys to the kingdom. You would be able to shut down any of the server components (eg mail, web-server etc) or indeed, stop the whole server !
You can also do terrible, and sometimes unrecoverable, damage to both users and the operating system files and folders (and even to the underlying hardware) with an ill considered command or even just a typo. You can compromise the server security or turn the server into your tool for distributing spam and/or malware, or have it take part in DDoS attacks.
You will perhaps see why so few data centres, web hosts, agents or resellers will grant anyone root SSH access, other than to the server owner (the person or company that pays for, and is therefore responsible for, the
whole server)
If your web presence or service absolutely depends on you having root access, then your only option may be to rent a whole Dedicated or VPS server. Before you do, make sure that the company you are renting from will facilitate the access you want (Especially applies to virtual servers).
If, of course, your desire for root access is motivated by anything other than an honourable and ethical need, you will definitely get found out sooner or later
