An Acoustic/Rakza7 is an excellent choice that will serve you well up to a pretty advanced level. And this means many years.
Reg. Acoustic has indeed a slim handle, LG handle is chunky, so an Acou SG Special, which is smth in between, should be a safe choice for most. I've had all three, and various weights as well. I've read that a new Acoustic G-Revision has same/close to a SG Special handle. The current sale price on Tabletennis 11 is so tempting I would have bought another one if I were still playing with an Acoustic.
Ask for a lighter one, a 80g and a 90g Acoustic are two different blades. A 90g is a classic for an advanced player, but a light one will give you more control and manoeuvrability close to the table and this is what you need at your stage. A heavy blade will be faster and will demand better anticipation and preparation/positioning, and this comes with practice, it can not be taught in a months or so, even by a top coach. A lighter blade will work your wrist and encourage you to try a variety of shots such as flicks and taking the ball earlier which will make your game instantly more dangerous in a match at an advanced beginner/intermediate lever.
Rakza 7 is an excellent choice as well, I used to play with this combo years ago.
And lastly, after you have bought it, forget about changing the blade, at least for two or three years, it's an excellent weapon able to carry you to a very high level. Realistically, unless you started training properly when a kid, you won't ever need a faster blade. If it was good enough for Ma Long it is more than good enough for us mere mortals.
I switched to other blades, but it's pure EJsm, nothing to do with an Acoustic lacking in something and I could gladly come back to it any moment.
One thing to bear in mind: an Acoustic gives you a tremendous feedback and creates a confidence-boosting feeling of control. But it is a lively blade which needs proper training in a short game, it is not a beginners' blade per se.
Further down the line, if you progress fast and start playing against better players, you may notice that Rakza 7 is easy and comfortable to play with, but it may be equally comfortable for your opponent to play against you.
There you may consider changing your rubbers, and there are two good options depending on the style you will have developed. You may try smth like a DHS GoldArc 8, which is a Rakza 7 on steroids - same feeling but a more offensive, tenacious rubber. Or you may go for a hybrid, smth like Rakza Z which allows you a more aggressive short all-round game and considerably more spin.
But for the next couple of years a light Acou/R7 should be exactly what the doctor ordered. I guess it will be a bit fast to start with, but in a month or so you will start to enjoy it. 🤩
