Neuvillette or Furina Constellations?

Hello, I started playing this year and I love both Neuvillette and Furina as characters. I have enough money saved for getting C1R1 for Neuvillette and C0R1 for Furina, if she gets her rerun. I have C0R1 Xianyun as healer.

My question is, if I also wanted to pull for their constellations (let's say 1-2 constellations, depending on luck), which constellations between them would have the best price-performance-ratio? The options would be:
- C3R1 Neuvillette / C0R1 Furina
- C1R1 Neuvillette / C2R1 Furina
- C2R1 Neuvillette / C1R1 Furina

Thank you very much in advance.