I like using a range of sources for meanings, so you don’t get the bias from using one.
Rachel Pollack’s stuff is good for the psychological side. But what really helps is seeing how different decks show the same card. Like the Page of Pentacles - in the Wild Unknown it’s about patience and laying groundwork. The Modern Witch Tarot shows more of a student vibe. The Crow Tarot makes it feel more methodical.
Each artist picks up on something different. I usually start with whatever the deck creator wrote in their guidebook since they designed the artwork with specific ideas in mind. Then I add in traditional meanings and see what fits the reading. Sometimes the Page of Pentacles is literally about a young person with a new job, sometimes it’s about approaching something as a beginner, and sometimes it means you need to focus on the basics. Context usually makes it clear which meaning applies.