Gaming Gadgets E-Commerce Launch

My goal is to break into the Electronics niche—specifically gaming gadgets—by launching fully linked storefronts on Amazon, TikTok Shop, and Shopify. I need help with two core phases:

Phase 1 – Product Research
Identify high-demand, low-competition gaming gadgets that meet Amazon FBA criteria. I expect data-backed suggestions (e.g., search volume, margin estimates, competitor analysis) pulled from tools such as Jungle Scout, Helium 10, or similar.

Phase 2 – Store Creation & Integration
Once the winning products are chosen, set up each storefront so they work together seamlessly. This includes:
• Amazon Seller Central listing with keyword-rich, detailed product descriptions
• TikTok Shop configured for in-app checkout
• Shopify store designed for a clean, user-friendly experience
• Integrated payment options across all channels
• Universal inventory management so stock levels sync automatically
• Consistent branding, imagery, and copy from platform to platform

Acceptance Criteria
• Minimum three validated gaming gadget opportunities delivered in a short report
• All three stores live, interlinked, and transaction-ready
• Listings contain engaging titles, bullet points, and A+ visuals
• Test order placed on each platform demonstrating payment flow and confirmation emails

I can supply logos, colors, and any additional branding assets you need. Please outline your process, timeline, and prior experience with multichannel electronics launches when you reply