I have created a new Sprite Font:

Boxed Sprite Font has a border already included with each character.

You can use square, round or curly brackets to create different side edges styles.

The font comes with a palette of 15 colours and there are over 2700 colour combinations with never two colours of the same type present for the character, shadow and background.

You can buy it here:
https://biim-games.itch.io/boxed-sprite-font