Under the principle of teaching one to fish....
A highly useful way to find out about things like this is to use google search, type enough keywords to get it to search for the right subject (Dragon Spacecraft, or Dragon SpaceX, or Dragon SpaceX Spacecraft), and the add the keyword "Wiki".
The wiki pages will usually have a lot of good info.
And the Wiki's usually have a LOT of links at the bottom for more info.
That's not a catch-all solution, but certainly should be step one (Google), two (Wiki), and three (Links on the Wiki page).
You could also search without the "wiki" keyword, looking for links to say SpaceX's own site and other sites that may have info (Ironically SpaceX's site does NOT have as much specific info as one might expect). Also don't stick to just the text links, try the "images" option which may show image of what you want to know (like reentry sequence if you added those keywords), which can be a good back-door way to find a web page with good text info on it.
When searching on your own fails to produce specific info you want, then it's time to ask others. Otherwise, people who reply to you are mostly doing the above steps you could have done, unless they personally have specific sites bookmarked and/or knowledge about certain topics.