I thought of
Andrew, too. It's the kind of name I'm most into but it's never really hit the mark for me. :-/
Crisanto, I like. It reminded me of
Chrysanthos except it's not as over-the-top in the ancient Greek fashion.
Santiago,
Santino, and
Sandalio all have quite a bit of appeal.
Sandy as nickname for them seems like a kind of apologetic anglicization, though, but I like them quite a bit in and of themselves. I'm surprised
Sandalio doesn't have any related names in the database besides the unlinked Sandulf; it seems like the type that would've spawned a handful of them.
Anaxander and Anaximander--wow. Where do they come from?