To choose the best support accessories online, start by identifying your specific needs. Consider whether you need extra back support, elevation for your legs, or a pillow that can help with posture-related issues. Look for products that offer multi-functional use, like the Compact Wedge Pillow, which can serve multiple purposes around your home. Additionally, check for features like high-quality materials, ease of maintenance, and space-saving designs to ensure you’re getting the best value for your purchase.