For that amount and that return Some may say Sell drugs and don't get caught, I guess.
That's not an investment instead that is liabilities because once you are caught surely your life will end 
Where to invest 7k usdt
To get profit daily 30$
To get profit daily 30$
if you want get 30dollar/day this mean 13percent/month is not easy
you must have upgrade and good trading skill
you can get 13%/month only ponzy scheme investment or you have trading skill