What to use instead of WCF in .NET Core? : <p>Windows 10, .Net Core 3.1  </p>

<p>How to do the processes communication on the same computer in .NET Core 3.1? I used WCF for these purposes when I used .NET Framwork earlier, but .NET Core hasn't WCF. I would not want to use the file system and <code>FileSystemWatcher</code> or write windows services for these purposes...</p>
