HC110 is probably the best choice if you insist on a long-lived liquid concentrate.
If you are willing to live with a bit of inconvenience then do-it-yourself D-76 will be superior. It keeps well in a glass bottle for 6 months, 3 months in Nalgene. You can mix up a pint, put it in 8 2-ounce bottles and do 8 rolls of 35mm 1-shot using it 1:3. For extra life, keep the bottles in the 'fridge. The raw chemicals that go into making D-76 will probably outlive you.