There aren’t any manuals like that included with MSFS. Your best bet is to look on YouTube, or search the internet for the plane you’re interested in.
This is a great resource for the A320NX (FlyByWire Mod) - https://www.youtube.com/watch?v=jchxsSdBRLo&list=PL4XNcpjBFH8ENxr_OnrSraok-fF69KWNi
He’s a real world Airbus pilot and does a great job of explaining things. Check out the more recent videos on the playlist.