1. Online music platforms: Some online music platforms provide professional arrangement services. You can find professional arrangers on these platforms to contact and cooperate.

2. Music production studios: Many music production studios provide arrangement services. You can contact the local or online music production studio and ask if they offer a fee-based arrangement service.

3. Independent arranger: Some independent arrangers will provide arranger services in their own names. You can find such an arranger through online search, music community or forum, and negotiate the cost with them. Therefore, we can find the charging arrangement service through the above methods.