I don't really understand by what you mean as shooting style? And no, I'm not going to collect all of them. Photography is not abt collection of all lenses, so pls don't be sacarstic thanks a lot. I'm not very good in this and obviously would have questions phrased wrongly. As stated, my main objective and purpose is for portraits and for scenery shots. And wish to buy smth other than my 18-55 so as to enhance my pictures. Pls help thanks.
Please read my questions as plain as they are. There is no need for getting upset or feeling offended, but it is important to clarify your motivations.
Shooting style includes the genre (e.g. landscape, portraits) as well the the way you want to capture it (portraits can be from head only to full body) and the distance (very close, from a distance, studio, outdoors, candid or arranged ...). There are many ways to create a picture and since you don't know what you want it is difficult to make recommendations. Also, what exactly do you want to enhance? Or: what is lacking in your pictures? What is it that other pictures make you "Wow!" ? Go deeper at this point, it has little to do with lenses.
The best way to enhance pictures is
1) Composition skills (The difference between creating an image versus freezing / snapping reality)
2) Basic skills about managing exposure (shutter speed, aperture, ISO) and using tools like filters
3) Post processing skills (Not everything can be achieved straight from camera)
[Long break]
4) Better lenses
5) Better camera bodies
The first three items make up for more than 80% of the final image. (Which explains why skilled people are able to use any camera to get simply great pictures.) At the moment you are discussing about the little maximum 20% which becomes less and less visible even to the trained eye when the picture gets downsized for Facebook & co. I seriously think you are trying hard at the wrong end.
If you need a wider lens, then Canon has a superb 10-20mm, Sigma has 10-22, Tokina has something in the same range and all fit your budget with a bit left over. For longer lenses you can use the Canon 55-250. Forget the 75-300 (still offered cheap sometimes). Most other lenses are out of budget as first hand. I haven't checked the 3rd party makers but I'm sure they have something equivalent. For reviews just use Google to get results from controlled test environments, user reviews tend to be biased for obvious reasons.