Hi welcome to the forum himadri.derive
It greatly depends on what you mean by “best”
Perhaps coincidental, but this very same question with the same lack of specifics has been asked here many times.
So that helpful answers can be provided, Please read these and then post more detail about what exactly it is you are looking for and ask about anything you don’t understand.
https://www.sitepoint.com/community/t/what-is-best-hosting-for-niche-site/216820/6?u=mittineague