What is the smoothest non bitter coffee?

Have you ever encountered a coffee that's so smooth, it's almost like silk on your palate, without any hint of bitterness? I'm curious to know, what is the smoothest non-bitter coffee you've ever tasted? Is it a specific blend or roasting method that achieves this perfect balance of flavor? Perhaps it's a particular brand or type of bean that stands out from the rest? I'm eager to learn more about what makes this coffee so exceptional and how I can experience it for myself.