I have trial version of essential, how to sign up QB online accountant

Where is your location? There is no QBO Accountant for Global version.

https://quickbooks.grsm.io/EU

I'm here to share additional information on how to sign up for QuickBooks Online Accountant, @j-prabashdesilva. 

Currently, we have an accountant version of QuickBooks Online for Global. You can start by creating a free trial account or subscribing immediately to get a special pricing discount. 

Here's how to create an account:

1. Open this link: https://quickbooks.intuit.com/choose-country. 
2. Click on Accountants & Bookkeepers to watch a short demo, see the features available, and check our pricing. 
3. Follow the onscreen steps to finish creating an account. 

Refer to the following link on how to get certified for QuickBooks Online: QuickBooks Online upcoming events.

After creating your QuickBooks Online Accountant, here's an article that can walk you through setting up your company file and other information: Get started with QuickBooks Online.

Let me know in the comments if you need more help creating and setting up your account. I'm always here to assist. Have a wonderful day!