I agree with many others. There are gimmicky things out there. But as a general rule the "flagship" bow is going to have better components. It depends on the beginner bow really. Does beginner bow mean just cheaper? Or fully set up to hunt as package (Bow + Sight+ rest+ quiver+stabilizer). Some of those are "RTH: Ready to hunt" so you get a pre package of gear, and that is great but there is a reason they can offer all that stuff for the price they do,: they are often built over seas or with cheaper materials. Do they work? Yes. But they may not have the reliability or quality control, and some of the materials will most definitely be cheaper. The strings on those bows are prone to stretch and twist, the riser may flex more d/t softer metals, ect.
I would consider a budget in mind and then buy the best bow+sight+rest ect you can for that money. And I mean overall budget. A bow is just a piece of the puzzle. A high end rest and sight can be $600 combined. Some sights alone are $600 buy itself, does this make it the best, not to me.... Just giving an example and if you have the budget and that sight has the features you want, I say go for it. Best is somewhat subjective.
There are some really great "mid level" bows that aren't "flagship" for $450-600 new. They aren't "fancy" ot have all the colors or gizmo's, but they have the same basic reliable components that will perform. PSE/Hoyt/Elite make some great bows in that range. Mission is a more budget friendly brand as well. But this comes back to what your overall budget is. This doesn't even begin to address the arrows equation...and the money you want to spend on them.
Or as others have suggested look for a "flagship," something 2-3 years old. Depending on the bow that can be $400-600. Consider what brand it is though and ask if they will still support/ make parts for that bow. It does no good to buy a 2-3 year old bow that the manufacturer won't support anymore in case something breaks. Your dealer should be able to tell you which brands offer support. When I talked with my dealer a few years ago, I was surprised to learn that Mathews will still make parts for bows sold 20 years ago. I'm not sure if this is the norm, but I thought it was interesting.
I agree with the person who suggested having a shop back you. Some shops will offer used bows and then you know they are at least working well and often come with a month of free shooting or help. My old shop did that. They had a rack of trade ins.