You have your keyword list that tells which search phrases searchers are searching for when they search for your site or your product, but you may need some stimulation to insert flavor and improve conversion. I have composed some words that I wish will inspire you.
Internet users don’t see the alike things after they are continually exposed to them time and again. In online promotion banner blindness is the most celebrated case. Internet users simply get used to banners that promote something that is not worth their time, therefore they stop notice the banners after some time. The similar thing happens with vocabulary that are used to make us do something.
Consequently, you have to adjust your action vocabulary sometimes to keep them effective. The problem for most writers is that it is enormously tricky to adjust the vocabulary because of old habit.
I have made this list of actions vocabulary to facilitate you adjust vocabulary sometimes to keep making your writing copy effect full.
Here are a few examples on how you can vary authority and uniqueness words to sell more.

Indicating Authority: distinguished, illustrious, legitimate, reliable, renowned, popular, widely, eminent, well-known, widely used, authentic, first choice of, famous, reputed, notable, prominent, famed, widely recognized as, legendary, recognized, dependable, trend setting, trusted by, talked about, endorsed by, endorsed by, endorsed by.

Indicating Uniqueness: unparalleled, incomparable, excellent, unrivaled, distinctive, only one of its kind, superlative, unsurpassed, top quality, second to none, superior, the top, best quality, inimitable, sole, undisputed, outstanding, extraordinary, superb, premium, first-rate, unmatched, exceptional, without equal, number 1, matchless, unbeatable, unique, singular, distinguished, peerless, advanced, one and only, special, exclusive, elite, the best.