The right Machine Learning solution for this problem
First things first, columns in your dataframe are called as Feature,
So, The right question for you will be
How to find Co-Relation between features?
As mentioned in the question, You want to find co-relation among them,
SO,
What is Co-relation ?
Answer :Correlation is a statistic that measures the degree to which two variables move in relation to each other.
Example: Ice Cream Sales
The local ice cream shop keeps track of how much ice cream they sell versus the temperature on that day, here are their figures for the last 12 days:

And here is the same data as a Scatter Plot:

We can easily see that warmer weather and higher sales go together. This kind of relation is called as a positive co-relation which means if one variable increase the other gets increased too hence both of the Variables are providing the same information.
In general case, it is better to drop one of them.