Specialized Trees
Blight (121 points): Good for Path of exile currency builds that aren't strong in red maps; Cassia's Pride is crucial.
Expedition (116 points): Best for currency farming at league start; sell logbooks and vendor refresh currencies.
Heist (114 points): Simple strategy: open caches, pick and go, no killing required.

Mid-League Atlas Strategy for Leveling and Currency Farming
This strategy is ideal for completing the Atlas solo without buying maps. Focus on using Orbs of Horizon to fill out your Atlas by completing maps you haven't run yet. Apply rarity upgrades to maps to sustain your pool. By completing the Atlas repeatedly at POE currency league start, you can quickly gain Atlas passive points to accelerate progression.