Picking the optimal Enterprise Resource Planning (ERP) system in Singapore is influenced by a multitude of factors such as the individual requirements of your company, sector standards, finances, and reconversion. Nonetheless, some ERP systems are revered and widely accepted in Singapore for their extensive functionalities and flexibility. Below are a few of the best ERP systems that you can think about:

1. SAP ERP: Its powerful features and high scalability have made SAP the first option for large enterprises. The system has numerous modules that span various business processes.

2. Oracle NetSuite: It is a wallet-friendly ERP plant that is contingent on the cloud is popular mainly among mediums to small businesses applications flexibility and a comprehensive suite of applications.

3. Microsoft Dynamics 365: This ERP system is integrated with the rest of Microsoft products and quite effectively. It has a variety of applications that range from sales to finance so it is best for companies of all sizes.

4. Sage 300: Previously called Sage ERP Accpac, this system is mostly used among small and medium-sized companies (SMEs) because of its user-friendliness and strong financial management capabilities.

5. Epicor ERP: It is known for its specific focus on the manufacturing and distribution industries, Epicor provides a range of features that fit them perfectly.

6. Infor CloudSuite: This is the ERP system with specific capabilities and cloud-based deployment making it a flexible choice that is favored by different industries.

7. Odoo: The open-source ERP system is highly customizable and cost-effective which has become a top choice for SMEs business looking for a flexible solution.

8. Acumatica: It is a cloud ERP system with many features and is famous for its user-friendly interface and the ability to expand.

Regarding the Enterprise Resource Planning (ERP), systems are the ones that need to be selected after the needs assessment, along with the consideration of future growth, and one could also consult the ERP implementation specialist to ensure that the selected is system is in line with business objectives. Besides, it is wise to examine the local support available and the number of implementation partners that are found in Singapore.