The boy's surname is Sun Yuan. What's his name?

Sun Yuanyang (vast ocean)

Sun (thunder: accumulation of stones)

Sun Yuanxuan (Xuan: bright, read xuān)

Sun (with Wu Lue, broad and profound)

Sun (Hao: heaven, sky)

Sun (Xu: a rising star: a wise gentleman in ancient times, later called a saint)

Sun (Chen: synonymous with ancient emperors)

Sun (Ze: the water source of wide area)