help find bass strings

Hi, so I've been having an issue finding the right gauge strings for my seven string bass. It's a 34'' scale, and I alternate between low G# base tuning, and low A base tuning. I'm looking for a gauge that wouldn't be too tight in low A and not too sloppy in low G#. As well as looking into...

So guys here is my problem, a few days ago i was playing my bands bass players bass and i broke the top E string and i am just going to replace them all. What i need help is what Brand/Gauge/Type of string to get. For bass guitars i really have no clue what strings so i need you guys to assist...