Yes, customer can go through to one of the module Request For Quotation Marketplace Add-on. A customer can send a product query requirement to all the vendors of the marketplace.
When a customer creates a new request, it will be sent to the admin, after that the admin will send that request to all the vendors.
For complete workflow, you can go through the Documentation
Please do contact us for any further queries or requirements. You can also check our Magento 2 Extensions for additional features.