The next client is often one you already have.
An introduction from a client who trusts you is worth more than a stranger who has never heard your name.
Most owners wait to be recommended. They hope the reputation is doing the asking. Sometimes it is. Often it is not, and they have no way to tell. The discipline is to ask the people who already buy from you, properly, and to keep a record of who can introduce you.
The referral method is Star Referrer. Star Referrer