Tips and Easy Achievements — Assassin's Creed Odyssey

1.Tips

Easily defeat legendary animals: Raise your Wanted level to summon a Mercenary; flee to the Legendary Hunt location and let the beast fight the enemy. Attack from behind while the animal kills the Mercenary.
Fast XP: Grab bounties and contracts from the Message Board (lots of XP); gold-outlined 'main side quests' give huge XP. Sync viewpoints and advance the main story.
Romance: Choose heart-icon dialogue. Characters: Odessa, Auxesia, Xenia, Roxana, Kyra, Daphnae (female); Kosta, Alkibiades, Lykaon (male). Your gender choice doesn't change who you can romance.

Aphrodite's Embrace: At the end of 'Age Is Just A Number' (Phokis), pick the 'Let Me Satisfy You' heart dialogue.
War Master: Zero out a region's power bar (purple) — kill soldiers, burn war supplies, pillage the treasure — then kill the leader (Kos Island is small and fast; doesn't work in Megaris).
You Work For Me Now: Scan forts with your eagle for a yellow (Legendary) NPC; knock out with a Sparta Kick or bare fists, stand over them and click the left stick, then hire them as a Special Lieutenant in the ship menu.
Ramming Speed / Wrath Of The Amazons: Equip a female crew cosmetic, disable a ship and ram its center at full speed (cleave it in half).
Stink Eye: After Sequence 1, kill goats on Kephallonia; the Cyclops's eye drops after ~10-20 kills.
I Have The Power: Get the Overpower Attack/Bow Strike skills; perform an overpower attack with every weapon type.