Dear Angad,
Greetings! Thank you for posting in the Microsoft forum.
From your post, I understand you do not see Document library option as shown below when clicked on +New on the home page, right?
Please note, only the default homepage +New button allows you to create other libraries (lists, document library, app, plan) within your site. The contextual menu changes depending on the page you are in.
The owner and the members (edit) of the site have the permissions to create a new document library/list. Since you do not see this option as an owner, please try the following:
- Go to Site Contents, click +New, check if Document library option is visible.
- Go to _layouts/15/addanapp.aspx (amend this at the end of the site URL, example https://xxxx.sharepoint.com/sites/SiteName/**\_layouts/15/addanapp.aspx**) and check if Document library is visible as an app.
If the issue persists, please provide us with the following information for further troubleshooting:
- A screenshot of Check permissions page. To get the screenshot, please go to Settings>Site Permissions> Advanced permissions settings, under Permissions tab, click Check Permissions, type your name and Check now.
- A screenshot showing what you see under +New button.
- If possible, please check with the other owners or members of the site to verify if they can see document library option.
Let me know if you need any help.
Your understanding and patience will be highly appreciated. I hope that you are keeping safe and well!
Sincerely,
Neha | Microsoft Community Moderator