Picking new Fly line

#1
I just got an Orvis Access 907-4 Tip Flex here on the forum and I'm trying to figure out what would be the best line to get for it.
I got it to fish for fishing Pinks in the sound and rivers and maybe start fishing more in the salt.
I also didn't have anything between a 4 wt and 9 wt.

I want to get two lines that would be the best for the rod and my situation (I tend to fish dry lines, even in alaska on my 9 wt fishing silvers and kings).

I found a Rio AuquaLux WF8 I/L and Mainstream WF8F in with my reels, They don't seem to be that good of lines?