Hey y’all I’m snoop dogg I make music and I just wanted to say hi ☠️

I've a simple .NET Core Web API that processes large size documents (> 10 MB < 50 MB). Basically it reads a document from CRM like Salesforce processes it with Aspose and send the processed documents to multiple destinations like Salesforce, Email etc. Instead of using byte array I thought of using streams but my question is after I process the document I get an output stream and how can I send a single output stream to multiple systems in parallel? Since streams are single threaded do I need to clone the stream? Cloning will again cause memory issues right? How we can handle large size documents in a memory efficient way and yet I can send to multiple destinations in parallel.