Hi,
Pirastro (Eudoxa maker)has great Synthetic strings. They are very stable, sound almost like Gut & break less
. Every instrument reacts differently to each type of string. It's all trial & error with string. There's the Aricore, Synoxa, Tonica, Obligato & Evah Pirazzi. You might want to get a C string with Tungsten for a clearer sound. Hope this helps.