I can’t help you with uke or bass strings, but I love D’Addario brand strings for my acoustic guitar. They make great strings. I use the light gauge (blue package). Choose phosphor bronze if you like a warmer/mellower tone when you play, 80/20 bronze if you like a brighter tone, or if you’re not sure try one and then try the other the next time. They’re only like $8 a pack.