SQL Server - List all fixed length fields in a database

I noticed that a field in a database had been set to a nchar(), this means it's a fixed length and in a result query had trailing spaces. The 2 options I had were to change the field type to nvarchar() or add a RTRIM() to the field and alias it. To identify any other fields that were like this I ran the following query:

SELECT 
    TABLE_SCHEMA,
    TABLE_NAME, 
    COLUMN_NAME, 
    DATA_TYPE, 
    CHARACTER_MAXIMUM_LENGTH AS Defined_Length
FROM INFORMATION_SCHEMA.COLUMNS
WHERE DATA_TYPE IN ('char', 'nchar')
ORDER BY TABLE_NAME;