If you just want to do it quickly, why not utilize the RedGate Page?
https://www.red-gate.com/website/sql-formatter
Otherwise they have the formatter in their tool SQLPrompt as well, but it is not for free.
Other way to do it:
Visual Studio Code
Afaik there's also the option to format code.
But since you want to establish a standard ( I Really should start reading first all information before answering... :-) )
it is easier to go for an appropriate tool.
ApexSQL is another one where you can also define how T-SQL code should look like.
Regards
Dirk