Permanent Monster Familiars

Start at mutant pig? then with the increase dropped rate hunt mutant snails

Actually, I'd go like this:

Mixed Golem, slight increase anywhere

for

Spider, High increase, average level

for

Mutant pig, the bane of the boxers, same benefits as spider, but dealing nice damage

for

everything else. Basically. Also, GET MR. ALLI. IT'S FANTASTIC.