I researched a lot and at the end of the day I found out about the website which allows you to exchange youtube subscribers.
If you want to get subscribers without subscribing to other through you original YouTube account then follow these steps.
Create a google account and log out of all the other accounts.
Go to free instagram followers and register yourself.
Verify your email and go to Add and Manage page and add your channel link.
Set the number of points. Try to select 10-8. The higher you select the faster subscribers you will get.
Go to social media exchange tab, Youtube subscribe tab and start subscribing to everyone.
See the number of subscribers growing on your channel. :)
Please upvote.