Multi-POD provider routing, Printful vs Printify vs Gooten vs Gelato by SKU and region?

The routing logic I default to for POD brands at $500k+:

• Printful, premium quality, slightly higher cost. Best for hero apparel (heavyweight tees, embroidered hoodies). Global facilities (US, EU, CA, AU, JP). Use for: premium product lines + EU/AU/JP customers.
• Printify, lowest unit cost via competing print partners. Best for budget t-shirts, mugs, posters where cost-of-goods matters more than premium feel. Use for: budget tier + high-volume items.
• Gooten, widest product catalog (1,000+ products). Best for novelty / niche products (custom puzzles, blankets, pet products) Printful doesn’t carry.
• Gelato, in-region production in 100+ countries. Best for international expansion: EU customer ships from EU facility (2-5 days vs 10-14 from US).
• CustomCat / SPOD, fastest US fulfillment (24-48h ship). Best for US customers who pay extra for speed.
• Apliiq, private-label cut-and-sew (your brand label inside the garment, not the POD provider’s). Best for fashion-grade POD apparel.

The Magento routing logic lives in a custom OrderProcessor plugin: for each line item, evaluate (product attribute “preferred POD”) + (customer ship-to country) + (product cost + shipping cost matrix) → pick the lowest-cost-fastest provider. Inventory webhook sync keeps Magento aware of which POD partners have which products in stock.