Titles of the kings in the world

For Monaco, it's Prince Albert II Of Monaco, so Prince should be either recognized or set as the primary option. For Sweden, it's King Carl XVI Gustaf, so King should be either recognized or set as the primary option. For Thailand, it's King Vajiralongkorn (Or King Rama X), so King should be either recognized or set as the primary option. For Cambodia, it's King Norodom Sihamoni, so King should be either recognized or set as the primary option. For Bhutan, I'd suggest either putting Dragon King, King, or leaving Druk Gyalpo or putting all 3.