Given your current account build, it's really hard to say since Sol's your only SSR. I would suggest re-rolling until you get an account with Sol and another SSR before deciding your build.
Assuming you don't want to bother since your only reason for existence is Sol... your team build can really go anywhere since well... Sol is Sol, she can literally be anything, although a good general direction is water dps, since you already have Oceanus. Other SSR pulls might change your mind though, so keep your eyes peeled.