It is possible to build any character you’d like. There’s no “right” strategy to make a character, especially in 5e. Irrespective of what you select to carry out the character will “work”, but in the event you’d like some ideas for using a goliath’s stats more optimally the following builds https://barbariangoliath48024.kylieblog.com/28459213/the-best-side-of-spy-background-5e