Ranger
Ranged physical damage, Bow
Farm Cogni and Fera pets you already pass while questing. A named "best ranger pet" does not exist in the owned-effect table.
Guide opinion
CogniHP +30, Critical Hit +2, Might +1
Then FeraMount ground move speed +3, Accuracy Bonus +2, Dexterity +1- Calculator
Each card shows the owned effect of one pet at Insight 3 in that genus, not a class-exclusive bonus. The order is guide opinion. It does not establish a DPS gain or require a rare pet purchase. Check the genus and Insight table
What to farm
You can farm from range, so low-level field pets stay efficient longer. Do not detour for a rare name. Owned stats are identical inside the genus.
Every field pet unlocks at 5 souls and reaches insight 3 at 105. New unlocks also grant 500 Genus Insight EXP, so a wide collection beats camping one monster.
Open the Genus Insight calculator with this genus selected, and the line tier list before you lock anything.
Insight lines
Line picks below are guide opinion, not a client tooltip. Daeva Guides (citing Game8), AION2 Builds, and Aion 2 Maps agree on the direction: Attack Bonus, Boss Attack, Critical Hit, and Accuracy before defensive filler. Do not lock a line before the board is insight 9 or 10. Locked lines stop granting analysis EXP and the Kinah cost climbs fast.