I would like a weedy, shy, voice or if you are able, to imitate his voice from the dub. Syrus is always being talked down on so most of his dialouge is him being depressed or distressed. He does have a couple lines that require him to be somewhat sarcastic or happier so take that into account.

Medium to high pitch preferred but not necessary.

Here's an example of his voice - https://youtu.be/MQNqcqT3i5c