Take a look at videos trending in your country on YouTube, check top 10 videos on the list. Lets say the video with the smallest number of views has 100000 views in 1day, it means in 5 days, it will have 500000-600000views. Since it takes about 4 to 5 days for your quality absolute retention views to be updated on the YouTube counter, it's best adviced that in this scenario, you buy 1million or more views 5 days prior to when you wanna be on the list. REMEMBER: on trending list, a video with 1 million views in 1 day ranks higher than a video with 1 million views in 5 days. Also, a video with that gets 1 million NATURAL legit views in 5days will rank higher than a video that bought 1million views in one day (which will show be updated on view counter in 5 days)
SETBACK: You might never find a view service provider that can deliver the amount of views you want in one day as most of them deliver large amounts in 4-5 days thereby delaying you and making you to spend more.
In the end you might end up buying 5million views

(not worth it) i.e to make 5million views in 10days
Getting to trending list worked best with UNLISTED METHOD which is dead.
Easiest way to get there now is to give people what they want and like to share
Another way is to use YouTube LIVE BROADCAST

( search the thread " Easiest way to get 50000 views in one hour on YouTube") by BILL GATES on BHW
...but you must still give people what they want!!
