Not sure why there are so many people recommending real estate purchases and then renting them out. Is the OP's dream to be a slum lord? Airbnb is even worse, the upkeep and cleaning fees destroy returns.

The ROI on real estate generally is very unimpressive unless you get lucky with capital appreciation or make massive developments (with massive bribes).

The general stock market returns around 10% per year, just dump some of it into index funds and then buy some btc, ether, and a few other top coins.