What sharing option is recommended for organizations with a large number of accounts with single site members?

The recommended option for organizations with a large number of accounts with single site members is Account Role Optimization. This approach is particularly beneficial in environments where you have numerous accounts, allowing for efficient management and sharing of information based on user roles.

By optimizing accounts through defined roles, it ensures that users have access to only the accounts that are relevant to them based on their specific responsibilities. This targeted access not only enhances security by minimizing unnecessary visibility but also streamlines the user experience by reducing information overload.

In contrast, ownership-based and criteria-based sharing rules may introduce complexities in ownership transfers and could overwhelm users with access that may not be directly relevant to their roles. Super User Access pertains to giving high-level access to specific users, which might not be suitable for large groups with distinct needs based on role categorization. Therefore, Account Role Optimization effectively supports the organizational structure and dynamics, making it the ideal choice in this scenario.