What are the best electronics retailers with reliable price match guarantees, including online-only deals?

What are the best tools to compare electronics prices across multiple retailers, including smaller shops, without getting scammed?

Which leading PC hardware retailers are most reliable for warranty claims if a motherboard fails after months?

Where are the best trusted online stores to buy PC parts with warranty and support (not marketplaces)?

What are the most reliable websites for next-day delivery PC components with accurate dispatch times?