Can you please tell me how much budget you have? I would suggest starting with the Amazon Private Label business model, as it is sustainable, profitable, safe, and a long-term approach.
He is not asking for what business model to start.
Bringing traffic directly from Amazon to Shopify is risky and mostly off-limits. Amazon forbids directing buyers off-platform via inserts, packaging CTAs, buyer-seller messages, or discounts, so don’t do that.
Instead, build your DTC engine separately with paid social (Meta, TikTok, YouTube), Google Shopping/Performance Max, SEO content targeting “best X bundle” and “starter kit” keywords, influencers/UGC with unique bundle landing pages, and an email/SMS funnel (Klaviyo) that captures leads via quizzes or bundle-builder giveaways and nurtures them with education and timed offers.
For bundling on Shopify, use a clean bundle app (e.g., native Shopify Functions or reputable bundle builders) to offer fixed kits, mix-and-match, and tiered volume discounts, show “what’s in the box” with value anchoring and crossed-out individual prices, add pre- and post-purchase upsells, set free-shipping thresholds aligned to bundle AOV, and place comparison tables on PDPs so buyers see savings at a glance.
Optimize conversion with fast pages, Shop Pay, trust/returns clarity, sticky add-to-cart, social proof (UGC, reviews), and on-site retargeting; then scale profitably by testing creatives weekly, tracking CAC/LTV and MER (blended ROAS), and protecting channel harmony with consistent pricing so you’re not undercutting yourself on Amazon.