Like most other DnD classes, monks choose subclasses at level three. There are 15 monk subclasses from 2014 5th edition and the updated ... that use actual slots. Sun Soul is another example ...

Way of the sun soul turns monks into ranged attackers ... Now, you have everything you need to pick the best monk subclass in 5E for you and your table!. Warrior Of The Elements Source 2024 ...