What SQL account will give me access to create following tasks?

Please read this from Microsoft-

https://docs.microsoft.com/en-us/sql/t-sql/statements/grant-server-permissions-transact-sql

Looks like you need a DB_Owner/Sysadmin permission. These permissions really powerful. If this does not work you can create a login and provide each separate permission to it. like below-

GRANT ADMINISTER BULK OPERATIONS TO [yourserverlogin]
GRANT INSERT on SCHEMA::dbo to yourlogin.

I can't have SA permission. I can have DBO access with roles.

Does DBO = DB_Owner?

I can have only DBO access, what roles will give me that additional access I need to

•      bulk updates
•      stats monitoring
•      insert
•      VIEW SERVER STATE

I can't have SA permission. I can have DBO access with roles.

Does DBO = DB_Owner?

Yes, dbo is dbowner but dbowner can't grant VIEW SERVER STATE as this permission is server based and not database based.

What server level permission do I need? Is it DB_Owner?
So, on SQL database level I need to DBO and on server level I need to DB_Owner.

Can you please explain how I can grant server level access on SQL server?

If you already closed this question why do you still have doubts on this similar question: https://www.experts-exchange.com/questions/29068598/SQL-script-to-generate-new-database-and-add-account-and-apply-proper-permission.html?anchor=a42371094¬ificationFollowed=200363343&anchorAnswerId=42371094#a42371094 ?