Song is written as Song in English. For example, Song Zuying's concert in the United States was named Song's Song (the former song refers to her surname Song, and the latter one means "song/singing")
Steven Song is a bit hard to pronounce when pronounced together. I wonder if the poster noticed it.
I think Frank Song is better, and this name is more popular in English-speaking countries. It seems to have a calm personality. Frankly, at the same time, the name starting with F is related to your Chinese name