Real Talk: What is the best small business credit card out there (for points, ease of use among multiple general managers, etc.)?

Context: I feel like there are almost too many business credit card options out there that have varying levels of value. I'm wondering which credit cards other small business operators have used, loved, and would recommend based on the value it gives back to the operator - specifically, in points value and ease of use. [Size-wise: This would be a cc for a multi-site (3) wellness studios that do about $3.5M in sales.]