You can build any character you’d like. There’s no “right” strategy to make a character, particularly in 5e. It doesn't matter what you choose to try and do the character will “work”, but should you’d like some ideas for employing a goliath’s stats extra optimally the following builds are good https://aarakocrawizard93680.educationalimpactblog.com/50303699/helping-the-others-realize-the-advantages-of-kenku-pirate