Skull strings! https://www.skull-strings.com/wp/en/Great product, sub-par customer service that I'm tired of dealing with. Are there any other companies that produce similar quality fat bass strings? Biggest I need is like .154 to .160 for 34" or 35" scale length.
They have long scale strings in both nickel and steel for both bass and guitar. If they don't have the exact gauges you like in a pack/set, when you can custom order your own set.
They don't require you to order like 10 or 20 set either. If you want a super weird and unique set then they might ask you to order 2 sets.