Was thinking of Fremont Blacklines, but after Booli's comments about too much tension, not sure. I understand they are much higher tension than most strings.
Fremont has both a 'medium' tension sets and 'hard' tension sets, you might be ok with the 'medium' tension set, maybe even tune DOWN to Bb at first just to see how it feels.
I tried the Aquila REDS, both with their own low g, and with the Fremont Soloist wound polished low G, and they sounded fine (if not a bit quieter than the Martin M600 and quieter than Worth Browns BM), but had much lower tension than either of these. Plugged in and for recording it does not matter so much, but if you are in a group jam, I think you will struggle to be heard acoustically with Aquila REDS, but they sound very sharp, yet sweet, and very 'classic' uke like in a more Roy Smeck way (on the Epi LP), but with a bit more sustain...
I have replaced both the nut and saddle with micarta on mine, and as such have the action
very low (you can almost just breathe on it to fret the 1st position chords), and lower tensioned strings tend to slap the fretboard when you fingerpick, but I have the 'soprano' set (for slightly higher tension than the 'concert' set) of Living Waters, re-entrant, and I feel that the Living Waters bring out overtones and harmonics that are simply not present with any of the other sets of strings that I have tried.
For me, on this instrument
'the strings of forever' are these Living Waters, but tuned down to Bb to balance the tension to get it just right. I did try the concert set, but in C6 tuning they were too floppy and in D6 tuning they felt dangerously tight (like to pull off the bridge). Thus the soprano set tuned in Bb.
I loved the Living Waters on all instruments that I tried them on, but I just wish the price was a little lower, when compared to the Fremont, Oasis, Worths or Martin M6x0 strings where you effectively can get 2 sets of strings for ~$10-12.