I am just curious what would you do if you won a lottery for real? Spend all the money enjoying your life or invest in something supporting the future?
I would buy a villa somewhere in Spain and enjoy it for a few years (even have chosen one
https://tranio.com/spain/adt/1561337/) and than sell it
Or more mature option - buy a flat somewhere in Barcelona (it is a top-notch destination for tourists). Short term rentals promise decent returns and the possibility to leave a job in the future