You can only rate any training institute as best when you experience any course from them. I will tell you because I have been through it as I am a working professional and I have done Selenium course, I found intellipaat’s Selenium course as the best reason is they provide you with the best faculty with more than 10 years of experience and the course content is just awesome and the support team is great too they will respond to you whenever you will have any doubt and that makes your study smooth.
They also provide you a free video tutorial to learn Selenium here is the link:-