The font used is just the default font the LL Viewer uses as well, if it was hard to read it was either scaled down or the quality was too bad.
The reason why no one shares how to get these amazing results is because it is hard if not impossible to actually explain and show how to do it. It's 99% experience and your own imagination. You need to get a feeling for it. Just like anyone could be a master artist but most artists don't share their "secrets" because there really aren't any secrets to be shared, it's just a matter of trying, collecting experience what works and what doesn't, such experience is hard to share as these often very specific to a given situation and requires special treatment.
You can't simply tell someone to do this or that because they are just examples that might only work in these very specific situations, which is not very helpful if to the generic case of learning how to do it. I can't tell you either how to do it and i've been doing it for over 8 years. The best i can do is tell you to watch my videos.
Specifically this one:https://www.youtube.com/watch?v=Bg0cqQtumIY
To get an completely unbiased, uncommented blank example how i do my stuff, watch them and take notes on what i do, try imagine doing the same and think of the reasons why i'm doing things the way i'm doing them rather than doing something else. But note that this is just a short video of a really quick snapshot. I tried to mash it into the given timeframe of the song playing in the background. I could have made more adjustments, going up to 10 or 15 minutes.