Make a demo; send it to record labels; if you’re talented enough– get signed. Do you think this sounds like a good music business plan?
If you want some extra input or assistance you can seek out a talent or music manager.
A talent manager, also known as an artist manager, band manager or music manager, is an individual or company who guides the professional career of artists in the music industry. The responsibility of the talent manager is to oversee the day-to-day business affairs of an artist; advise and counsel talent concerning professional matters, long-term plans and personal decisions which may affect their career.
The roles and responsibilities of a talent manager vary slightly from industry to industry, as do the commissions to which the manager is entitled. For example, a music manager's duties differ from those managers who advise actors, writers, or directors.
A manager can also help artists find an agent, or help them decide when to leave their current agent and identify who to select as a new agent. Talent agents have the authority to make deals for their clients while managers usually can only informally establish connections with producers and studios but do not have the ability to negotiate contracts.