A good starting point could be 'The Windup Girl' by Paolo Bacigalupi. It has a post - apocalyptic and high - tech feel, with elements of genetic engineering and a complex social structure, much like Shadowrun novels. 'Ghost in the Shell' in novel form is also suitable for beginners. It explores the relationship between humans and technology in a way that's easy to understand and has a lot of cool concepts that are related to Shadowrun, like cybernetic enhancements and artificial intelligence.
I'd recommend 'Neuromancer' by William Gibson. It's a classic in the cyberpunk genre which is related to Shadowrun. It's not too difficult to follow for beginners and it sets the tone for a lot of the concepts you'll see in Shadowrun - like novels, such as the integration of humans and machines. Also, 'Altered Carbon' is a good choice. It has a really interesting concept of body - hopping and a complex, yet accessible world that is somewhat similar to what you'd expect from a Shadowrun - like novel.
For beginners, 'Snow Crash' by Neal Stephenson is a great start. It's easy to read and has a really engaging story that gives you a taste of the kind of world - building you'll find in Shadowrun - like novels. It has a unique take on a future society. Another good one is 'Ready Player One'. It's very popular and has a lot of elements like virtual reality and pop - culture references that are easy to understand and get into. It gives a similar feel to Shadowrun in terms of the high - tech and adventure aspects.