As a beginner, there are several factors to consider to make the game “easier” for you. At the entry level, given your lack of skill, you would want a more “forgiving” set of clubs. This would mean opting for more flexible shafts, a taller loft, and larger head sizes.
The oversized golf irons were designed for beginners. The stronger, heavier head gives you a larger sweet spot, making it much more “forgiving” and making it easier to hit a reasonable shot. As your technique improves over time (and your handicap), you will find that you start to lose the control you want once you have reached more distance. By then it just goes down to a pot head size.
When it comes to buying oversized golf irons, remember that harder is better. The harder the building material, the more “forgiving” the stick will be. It is better to opt for stainless steel or titanium. However, keep in mind that titanium is quite expensive. So if you see a cheaper set with titanium heads, it is likely not high quality and even only contains a small percentage of titanium.
Oversized golf irons were basically designed to be easier to hit. As a beginner, distance control is not a priority. Due to his lack of skill, there is not much difference at this stage. He just wants to be able to get the ball out and keep it in play. As your game improves, it depends more on your swing and less on the weight of the club. Then you can move on.