Currently, Bitcoin ATMs are one of the best places where you can turn your dirty money into untraceable digital assets. If you have cash, you can literally go to the ATM with a printed QR code and turn your USD(or any other local currency) into Bitcoin, Litecoin, or any other supported crypto asset. Of course, spending more than a few hundred on the ATM might seem suspicious, but since there are multiple devices in large cities you can turn large amounts of cash into cryptocurrency within just a few feeks. The interesting part is that that will cost you just about 7-10%(this is the fee that the ATM will take from you for the transaction), which is a lot less than what will cost you to use any professional criminal.

I want to point out that Money Laundering is a very serious criminal offense and people are going to jail for this and you should not do it.