This AWS RDS tutorial will show you how to set up MS SQL Server on AWS RDS. Amazon RDS is a cloud database that AWS manage all underlying servers for you. You will first see how to set up SQL Server on RDS. Next you will see how to access your SQL server from RDS.
If you need help on installing a server to connect to your SQL box from please see the tutorials below that may help:
How to set up server 2019 on AWS
How to install SSMS on windows