Student with money to invest but no earned income, taxable account or HYSA until I can use a Roth IRA?

Executive Summary

My question is as the title suggests. I have a decent amount of money from gifts from family members, but because of that, I have no earned income for the year. Am I better off saving my money in a HYSA until I’m employed and can put money into an IRA, or should I just put the money into a taxable a...