If you're just going strictly by the common on and kun readings, there are a lot of different combinations, but here are a few common ones used as names:
こかわ/こがわ ふるがわ/ふるかは こが こせん
If you're just going strictly by the common on and kun readings, there are a lot of different combinations, but here are a few common ones used as names:
こかわ/こがわ ふるがわ/ふるかは こが こせん