Jassiara
Players who play the QGA

Does it look like I have premium?
Yes, I looked at the link you posted, but I was wondering if there were any experts on that specific opening.
I know its weird, but some people write books on specific openings they feel they have mastered and was asking to see if any masters were just as invested in a certain opening.
Listen man, I agree w/ Yuri. Chessgames.com will give you everything you need, and all you need is google.
Also, you seem to think that playing the QGA is a way to getting better. I have to tell you that it's not.
https://www.chess.com/livechess/game?id=1613132587
You already play good openings, but then what? You lose to 1 move tactics. Even masters make mistakes. But they don't lose to these kinds of 1 move things in completely quiet positions.
Collecting a notebook about the QGA, or learning anymore than the basic main lines is not really gna help you at this point. You can do it, sure, but just choose the simplest ideas and play them.
You have to work on not losing in 1 move, which will negate 39 moves of well-played chess.
When you've played TEN standard (45 minutes or higher) in a row without blundering material in easy situations (blundering when your opponent is attacking you, or when you're playing the King's Gambit Muzio, is a totally different thing than this - you'll know the difference), then you can start studying opening theory more carefully.
I was like you when I was USCF 1400. Only study openings, cuz fun. Once I realized that most players up to ~1700 USCF just lost quickly due to blunders once you exerted a little pressure against them, I made sure to never let this happen to me.
I want to give you this thread, which I created just after the tournament that boosted my rating over 2000. In one game, I almost lost against a 2100 player who completely bombed the opening.
Note that none of us made serious tactical errors in simple position, btw.
https://www.chess.com/forum/view/game-analysis/poor-openings-dont-matter-even-at-this-level
I wrote this thread shortly before I quit competitive chess for 2 years, but the same lesson still holds.
Opening theory will not even matter at the 2000+ level.

I wouldn't be concerned learning an opening that focuses on pinning your opponents knights as any decent player can play a good defense to this. But if you are frustrated with people playing d4 d5 c4 c6 Nc3 Nf6 e3 to avoid playing against the Slav like me then I can see why you would want to play the QGA. I personally want to start playing it on blitz. But I just want to play the QGA just for fun, as the opening has a lot of shock value I think.
If your a club player and regularly play in tournaments then getting chess base 13 and buying a bunch of databases up to and including the opening encyclopedia, and typing in the opening code on a search, looking only for games won by checkmate, then you would have quite a bit of games to look at.
What are some famous/strong players who commonly play/played the Queen's Gambit Accepted (QGA)? This is the first opening I'm going to try to study and I think looking and annotating master games of players who have consistently played this opening would help me greatly. I am thinking of getting notebooks for every opening and putting in main ideas, my games in the opening, and master games all pertaining to the same opening...
Please feel free to mention a strong player who commonly play/ed this opening!