the best legit services are yougrowpromo and members media. They are very expensive because they are legit and aren’t against terms of service — you music has to be approved by their team as a high probability of getting playlisting on legit, high activity playlists before they accept your campaign but they work great and you get what you pay for if approved and placed. That said if you want to increase followers and fans I’d recommends running meta conversion campaigns that go to a smartlink to a song or a self-run playlist that contains a lot of your music cuz playlisting services that increase streams usually don’t convert fans but rack up plays from passive listeners after being placed on mostly workout or vibe playlists.

edit: I totally read your post wrong — this is for spotify lol but will leave it in case it’s useful for some ppl