Real Time Excel, searchable buyer/seller matchmaking data visualization

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I need an excel, power BI, or something similar for a trading company developed. Eventually something for an open market not just one company. Something compatible with Microsoft applications that can be used by a team in real time stored in Sharepoint or one drive (not a must) that updates in real time across all team members that is searchable. It does not need to be complex, just something simple where the users can input companies information with their corresponding product for sale or product they are looking to buy. There will be 2 access levels. The first can be open for any one with a login to input what they have for sale and what they want to buy. The second level will be for just the trading company to be able to search across both buyers and sellers. I need to be able to input a material, then several specifications of that material. Then I need the results displayed in 2 columns, one for buyers looking for the inputted material and the second for sellers that have that material only for proprietary company team members to have access but the second level of access would allow outside buyers and sellers to have ability to input their products for sale or purchase but not access to the information. So I would need the sheet to display all buyers and sellers associated with the said search inputs. It's essentially a match making software that is very simple just searching a few specifications of a material and displaying those results across buyers and sellers. Having this as a stand alone application that can also be saved in a Microsoft application is a bonus but eventually I would like this to be a stand alone SaaS that can also be shared via major applications like Sharepoint, one drive, drop box, etc or viewed and saved standalone. I can host this on a server if need be.

Microsoft Excel Data Mining