Rather frankly, goliaths are ideal for any fighter build that will involve melee, but I really feel for pure damage output and cool element the best approach to go would be the samurai martial archetype. The samurai’s fighting spirit ability is previously bonkers for both of those offense and survivability https://tortle-ranger79123.dm-blog.com/28192042/the-smart-trick-of-elf-class-dnd-that-nobody-is-discussing