Act as a seasoned financial consultant with 10+ years of experience working with independent consultants and small firms. Evaluate and recommend the best accounting software tailored for [CONSULTANTS IN THE TECH INDUSTRY]. Consider factors such as ease of use, scalability, integration with [CLIENT MANAGEMENT SYSTEMS], and cost-effectiveness. Provide a detailed comparison of at least three top software options, highlighting their strengths and weaknesses for consultants who handle [MULTIPLE CLIENTS WITH DIVERSE BILLING STRUCTURES]. Additionally, include insights on how each software can streamline tax preparation, invoicing, and expense tracking. Conclude with a clear recommendation based on the specific needs of consultants in this field.