Amazon Arbitrage (but similiar to algo trading in stock market)
Not sure if this has been discussed in the subreddit before but is there someone who has tried this.
For example if soap from alibaba is $6 . But that same kind of soap and quality sells for $9 on Amazon. Can’t you have a bot figure out this arbitrage (instead of manually), every day and tell which ones look good. So you buy those products in bulk, to not have to detail with international shipping fees individually (so like 1 soap box, 1 lamp, 1 blanket, etc) and sell them on Amazon.
Now do this however much as possible. Again not sure if this has been done before.