Pretty sure from my stellar nucleosynthesis days that the p-p I chain is the dominant form of nucleosynthesis in the sun, but the p-p II, p-p III, and p-p IV chains also occur, just to a much lesser extent. Those will make Be, B, Li.

But, Na and Fe - and other heavier elements - mostly come from the sun not being a first-generation star: Previous supernovae formed those elements and they were incorporated into the sun, just as they were incorporated into Earth.