VTSAX has a $10,000 min and VTI has a $3000 minimum so those are out of the question right now
This information is wrong. VTSAX is $3,000 min and VTI is the cost of the share. VTI is an ETF (Exchange Traded Fund) so it trades like a stock, but has the exact same holdings as VTSAX.
If you only have $1000, go with VTI. The expense ratio is 0.03%, it tracks the entire total stock market which is like 3500 companies plus some more, and it is a great fund to be diversified as well.
I personally love it. VOO is the S&P 500, which has the top 500 companies in the U.S. Now VOO didn't hold TSLA for a long time until December 21st when TSLA joined the S&P 500 so VTI is more likely to get up and coming companies first before VOO will get them. That is another reason to go with VTI.