I’d suggest British BBC-heritage speakers such as Harbeth, Spendor, Stirling, and Graham. These often are reviewed by Robert E Greene (a violinist) in TAS.
Another choice would be electrostatics. The low distortion is, I believe, good for string music. I find my Janszens quite good for string quartets.
An additional investment might be an equalizer, such as the Schiit Loki Max. The variance in tonal balance among SQ recordings can be extreme. An EQ will let you make more of them pleasant to listen to.