David, Welcome to Pentax Forums!!!!
The one slight disadvantage to Pentax, is that there is not a ton of information about them out and about, like virtually every other brand. So, here are a couple of youtube videos that may help you to get started.
Here is a quick set of videos on getting started with the K70
Now, this is not particularly on the K70, but the prior entry-level body, the K-S2 which essentially has the same features and user interface. 98% of everything still applies, and is an excellent introduction. It's an hour long.
Also, Reddit has an excellent free online photo class every year...