What's the best way to capture email addresses early?

I've been running my Shopify store for two years now, and email capture has always been a frustrating challenge. I've tried generic pop-ups with standard 'join our newsletter' offers, but the conversion rates were abysmal. People just don't want another newsletter cluttering their inbox. I know email is critical—it's basically free marketing and helps me retarget potential customers. But how do I make the offer compelling enough that visitors actually want to share their email? I've seen some brands offer discounts, but I'm worried about devaluing my products or creating discount-hunting audiences. My goal isn't just to collect emails, but to attract genuinely interested customers who might become loyal buyers. I need a strategy that feels personalized, creates genuine value, and doesn't come across as desperate or spammy. The traditional 'sign up for 10% off' approach feels overdone, and I want something more sophisticated that actually speaks to my brand's unique value proposition.