I used to think of them as “cheating” because they’re so much easier to work with, at least for surface-level stuff.
The obvious place to start is the booklet that comes with your deck, and make sure you understand the difference between Tarot and Oracle. Don’t skip that if you really want to get a proper reading.
With Oracle, the booklet is a starting place and then let your intuition guide you. You need to go beyond the basics of just pulling a couple of cards and winging it. Look at the guide on giving better Tarot readings and just repeat that.
As long as you’ve got the basics down, oracle will fit neatly into your reading. For some, even easier than RWS Tarot cards.