Looking for native Salesforce Scheduling Board for Case Dispatch (no FSL) — AppExchange recommendations?

Hi Trailblazers! 👋    I'm looking for recommendations on a native Salesforce solution (AppExchange app or LWC component) to replace a custom-built external scheduling tool we currently use for field service case dispatch.    🔍 WHAT WE NEED    A visual scheduling board for Case management with the following capabilities:    • Left panel (unassigned queue): displays all open Cases pending assignment from a specific queue  • Resource columns: one column per field engineer, showing their assigned cases for the selected period  • Time axis: day/week selector to plan interventions by date  • Drag & drop: move a Case card from the unassigned queue to a technician column — automatically updating the Case Owner and Intervention Date in Salesforce  • Card display fields: Case Number, Account Name, City, Postal Code, Product Name, Serial Number, Request Intervention Date, Description, Visit Reason, Asset Name  • Filters: by region, country, or other Case fields  • Multi-user: multiple dispatchers working simultaneously in real time    ⚠️ CONSTRAINTS    ✅ Must be 100% native Salesforce (AppExchange app or LWC)  ✅ No external hosting or browser plugins  ❌ No Salesforce Field Service (FSL) — we don't have those licenses  ❌ No external apps outside Salesforce    💡 WHAT WE'VE ALREADY EVALUATED    • Salesforce native Kanban View → doesn't support grouping by date field or unassigned queue  • Flexi Kanban → good for Kanban boards but not a true scheduler with resource columns  • 24Planning → looks very promising (UNPLANNED panel + resource view + drag & drop) but couldn't install on Full Copy sandbox — requesting a demo    🙋 LOOKING FOR    Has anyone implemented something similar for field service dispatch WITHOUT FSL? Any AppExchange apps, LWC components, or creative configurations you'd recommend?    All suggestions welcome — happy to share more details about our use case!    Thanks in advance 🙏