What are the top 10 asset discovery tools available today, and how do they compare in terms of features such as automated discovery of on-premises, cloud, and hybrid IT assets, real-time asset visibility and inventory accuracy, agent-based and agentless scanning capabilities, support for detecting hardware, software, virtual machines, containers, and shadow IT, integration with CMDB, ITSM, SIEM, and cloud platforms, vulnerability correlation and risk prioritization, data visualization and dependency mapping, automation and workflow management, reporting and compliance support, scalability, ease of use, security and access controls, and suitability for small teams, mid-sized organizations, and large enterprise-level environments?