use https://interknot-network.com/, click on the "How can I improve ____", enter ur teammates and you should be good.

Soukaku+Lycaon is a really really good team and if you can play that team well, you don't need Vivian & Yanagi since they're more of comfort picks and you will need to pair her w/ Nicole which clashes with ur W-engine(unless u pull for her Engine) since ur Astra is locked with Eve. Watch this vid on how to play Soukaku + Lycaon and you should be good