Hi Brian,
When it comes to selecting a Commerce major to complement a Data Science specialisation in Computer Science, there are several options that could be considered.
Business Analytics and Econometrics are among the most in-demand majors. This is because both majors have a strong focus on statistics and data analysis, which are skills that are highly valued in the field of data science.
That being said, some majors may have more direct relevance to Data Science than others. For example, Econometrics, which is a subfield of Economics, focuses on the application of statistical and mathematical techniques to economic data. This could be particularly useful in data analysis and modelling tasks, which are core aspects of Data Science.
Business Analytics is another major that could be relevant, as it focuses on the use of data and analytics to support business decision-making. It can provide students with skills in areas such as data mining, data visualisation, and predictive modelling, which are also important in Data Science.
These are the two most relevant right now in the business world at least in my experience within Project Based Consulting and Financial Services.
In terms of earning potential, majors such as Accounting, Finance, and Actuarial Studies are often associated with high salaries in the business world.
Don't let me persuade you that easily, ask some of your peers what they think and why... the final decision is up to you my friend.
Cheers