Oh, bless your heart if you're still browsing "copy collections" for inspiration. that's like a chef reading a menu instead of tasting the food.
My best stuff comes straight from my own inbox graveyard - the cold emails and DMs i actually opened instead of sending to digital hell. i reverse-engineer what the hell made me read past the first line. Spoiler: it's rarely the subject line, it's usually the sheer audacity.
sales call transcripts are where the real gold hides. Find twenty transcripts from your actual target audience - the language they use, the stupid analogies they love, the precise pain they whine about. that becomes your copy. not some guru's swipe file.
Customer support tickets and competitor review sites? Absolute treasure. people write their frustrations in their own words there, unfiltered and naked. no marketing spin.
here's the thing nobody wants to admit: copy fatigue isn't a creativity problem. It's an "I don't actually know who I'm selling to" problem. Get intimate with your ICP and the copy practically writes itself. you're just the translator.