I'm thinking of breeding for a mission pet (zolnixi or lupora) what is a 'good' base stat? Any tips on breeding for them would be appreciated too!

A "good" base stat to start the project or a "good" base stat once you've completed your project?

I find most level 60 pets, with all skill points and proficiencies placed in the relevant stat and with appropriate legendary equipment will generally be able to succeed at a mission after the relevant base stat gets to 40+ (there is still an element of chance - I find some stats e.g. intelligence worse than others). All that said, the maximum base stat is 100 so you could always aim for that.

Flute's guide to stat breeding (here) covers most of the information you'll need.

Thank you!