wordlist recommendation for rule-based attack

[undeath]

It always depends on what you are trying to crack. You obviously need a different wordlist for a fast hashing scheme like md5 than you would need for eg WPA. Also it is well worth building specialized wordlists for your target, covering words from the thematic range the hashes originate from.

You seem to be looking for a rather small wordlist. For something generic have a look at the phpbb wordlist.