One of the biggest scams that you will see is something like this: “Pay $50 for a repost and you could get 150k followers!” That can be an enticing investment, but more often than not you will not get a good return on your money.
For channels that are just starting out, you may only see a 1% increase in engagement with offers like this. Reposts may or may not even happen, because they do not guarantee it. While this may not necessarily be a scam, it won’t always work as well as you hope it will and is not worth your money.
These are very common on SoundCloud and other social media sites. Even worse, some will offer these services for free, then once you have been reeled in, they change their pitch and make you buy the service. These are scams and don’t fall for their claims.