When it comes to high performance electrolytic capacitors at a reasonable price, it’s hard to beat ELNA. I can recommend nearly all their lines of capacitors, as I have used most of them. My favorites for signal path parts are: SILMIC-II, SILMIC ARS, SILMIC Gold and ToneRex. I have only included two ELNA catalogs, because these are easily found online (unlike most of what is in the database).
Looking for something in particular that you can’t find? Contact me and I’ll see if I can help you run it down!