Microsoft Developer Program

It will give you access to an admin account.

Requirements:

Phone number, a previously created outlook or hotmail email

Step 1:

Go to this link and click the blue button saying “Join now”. (https://developer.microsoft.com/en-us/microsoft-365/dev-program )

Step 2:

Create your account as you would normally or use your personal Microsoft account, I’d suggest you use your real Infos, or not, do whatever you want.

Step 3:

Select your country, give them a fake company name, accept conditions, whatever.

Step 4:

They will ask you why you want to integrate the program, and say that you want to use this account for personal projects.

Step 5:

They will ask you what apps you want to use, just put whatever you want, you will have access to everything still.

Step 6:

Now they will ask you what sandbox you want, I’d suggest you take the Instant sandbox.

Step 7:

Now they will ask you to create an admin account and input your country, the name you want, and your password.

Step 8:

Input your phone number, it will be used to send a verification code. (You will also have to use an authenticator to connect to the account.)

Step 9:

Your account is created.

You will land on this page:

Step 10:

Scroll down and enable the necessary apps then click apply and save:

Step 11:

Go to office.com (http://office.com/)  and connect with your given mail and the password you choose.

Source: https://docs.microsoft.com/en-us/office/developer-program/subscription-expiration-and-renewal