Chase's "smooth and sexy alpha male" as you call it, is only one of many possible personas which get laid. Notice how almost all the authors here have different personalities, and "styles" and yet, they all get laid. There's no one size fits all. Chase's style works well for him because it expresses his personality well. So unless your personality is similar to Chase's, I would not aim to adopt the same persona as him. Instead, I would augment my own personality. Whatever you're normally like...it's ok. It can get you laid.
...It just needs some enhancements. Namely, you need to eradicate insecurities and neediness towards women. For you, I don't know what those are because you haven't given us that information (and you'd probably have to type up a whole essay to list off all of them anyways haha). But whatever they are...there's two components to getting rid of them.
1. Going out, meeting women, building up reference points and successes. <---This is literally the scientifically proven formula for building this mysterious, elusive thing that we call "confidence"
2. Introspection. You must look inside yourself, examine your beliefs, question them. Ultimately, if you're meeting women and getting reference points, you're likely to eradicate the ones which are unhelpful, and start to adopt those which are more useful....and probably more realistic.
Ironically, you'll notice that your real personality largely remains the same. You'll just feel more confident...and more genuine. You'll behave in a way which is true to who you are. Not in a way which you think you need to in order to gain the approval of and get laid by women (which is what you're doing right now weather you realize it or not).