Microsoft sql login profile

Hi,
I am new to ms sql.

My use case:
1. Create login profile
2. Assign permissions to the login profile
3. Login into the ms sql server by using login profile
4. Create user, database

Can I assign permissions to a login profile?

To login into the sql server, login profile alone is enough?

Could you please share information and scripts

Thanks,
Martheeswaran M