Aren't the formulas in Charlie's book?

As mentioned, CD had a bunch of lubes that would be fine (he used several of them in his Pope style lube pumps). You might also consider Emmert’s lube if the weather is not too hot or cold.  I keep a batch of that mixed for pan lubing, but it’s found its way into a lube pump once or twice as well.
Froggie
PS  I also have used my proprietary Frog Guano in one of my lube pumps, but it wasn’t that much better than the others mentioned… except in my own fevered mind!