You could build any character you’d like. There’s no “right” solution to make a character, specifically in 5e. It doesn't matter what you choose to accomplish the character will “work”, but in case you’d like some ideas for utilizing a goliath’s stats additional optimally the following builds are good starting https://tabaxi-rogue81802.yomoblog.com/34197707/detailed-notes-on-aasimar-cleric