I think this is still relevant, even in 2023, so here is my crack at answering this :)
If your client is looking for a step up from QuickBooks, there are a few options that may fit their needs. Some popular alternatives include:
Xero - This cloud-based accounting software is similar to QuickBooks in terms of features and functionality, but it has a more modern user interface and allows for more simultaneous users. It also includes built-in data backup and recovery. Xero can be used "out of the box" with minimal customization.
Sage 50cloud - Formerly known as Sage Peachtree, Sage 50cloud is a more advanced accounting software that includes inventory management and job costing features. It also allows for more simultaneous users and includes automatic data backup. Sage 50cloud can be used "out of the box" with minimal customization.
Microsoft Dynamics GP - This is an enterprise-level accounting software that offers more advanced features such as project management and supply chain management. It is designed for larger businesses and can handle more simultaneous users and more complex workflows. It can also be customized to meet specific business needs.
NetSuite - This is an enterprise resource planning (ERP) software that includes accounting and financial management, but also includes inventory management, order management, e-commerce, and more. It can handle large amounts of data and many simultaneous users and can be customized to fit the unique needs of the business.
It's worth noting that these software options may require some customization and additional setup, and may also come with a higher price tag than QuickBooks. You should consult with your client, understand their requirements and preferences before making a decision.
Xero and Sage 50cloud are the most similar to QuickBooks in terms of features and functionality, and would likely be the easiest to transition to from QuickBooks. They both have similar user interfaces and similar features, such as invoicing, expenses, and financial reporting. Additionally, both Xero and Sage 50cloud offer import tools that allow you to easily transfer your data from QuickBooks, making the transition process smoother.
That being said, Microsoft Dynamics GP and NetSuite are more advanced and robust systems and may require more effort to setup, but they are designed for larger and more complex businesses. They also may require more customization to meet the specific needs of the business and may require additional training for users to become proficient in using the system.
Overall, Xero and Sage 50cloud are the most similar to QuickBooks and will likely be the easiest to transition to. It's also important to have a clear understanding of the client's current and future needs, as well as budget, as you make your selection.