Mycaeron and UF there is no general stack usage
You must stuidy your enemy and see what the weaknesses of their ships are
For exmple i find for miners it is mainly Kinetic and Chemical, you should have a good mix of large hull, long range, and high firepower ( i.e for Terran Pclass, Nirv, hercs, tyrs, Garuda, broads etc )
Best way to learn stacking is by getting beaten and learning from it, if you use the same stack you may win against certain races but others will rip you apart