Board Thread:Fleet's Prepared-ness/@comment-26294760-20171228081857/@comment-33564057-20171228092424

Dunno if this'll help:

http://kancolle.wikia.com/wiki/Partials/Blueprint_Priority

Arashio seems like the obvious leveller on the chart.

As for ones already there... Nagato seems like the obvious choice. Kinu and Tama aren't very far behind her and Suzuya/Kumano CVL even lower. but really it's up to you and your fleet needs.