To my palate, Citra is still the king of tropical fruit, with Galaxy probably 2nd place. If you want to push the tropical fruit hard, I'd go 1 part each Citra and Galaxy, and 0.5 parts of Mosaic and Equinox. You could also use a touch of Amarillo to bring in some orange/stonefruit to fill out the fruit, or hit it with Simcoe to add back some dank/pine as a counterpoint.