I am 9th grade student. I am looking to improve my overall reading and comprehension skills and would like a few recommendations on how to do so
The best way to improve reading skills is to read!
The SAT book is also helpful.
Read what you like. Maybe try to mix it up some. A few classics, biographies, fantasy & sci fi, mysteries, regular fiction, sports, whatever appeals to
you.
Online I like the app Longform, which links to good long articles from various sources (good reading when I have to wait someplace with my phone… I was trying to read Dracula and Don Quixote on it, but they weren’t good choices in short chunks). 
Go to your library regularly and see what is in their new books collection. I listen to a few book podcasts to get ideas for what to read – it is a little quirky, but I like one called Overdue. They read books they SHOULD have read earlier in life, but didn’t, and then talk about them. It is honestly better if you have already read the book… but if you look back over their back episode titles, you can find titles and authors that might interest you.
I think reading anything will help. The more challenging the better. Just find what you like.
Soome books I’ve read recently:
The New Left: The Anti-Industrial Revolution
Naked Economics
Bernie Sanders is Wrong
I agree with the above posters! Also, it helps to better yourself at recognizing components that are to one’s comprehension (stuff like theme, purpose, main idea, etc.) These skills are usually sharpened through practice in English class, however analyses of chapters can help too (although some over-interpret so beware!!) When you find things to read, I agree with the suggestion to mix it up in terms of author and genre! In order to learn you should challenge yourself and read some things over your grade level but keep it reasonable, like I wouldn’t recommend reading Hemingway as a ninth grader. Some may disagree with this but I just read a Farewell to Arms (senior) and while it’s easy in terms of storyline and Vocab, you can miss so many implications, symbols, and foreshadowings very easily (at least I did! ) Anyways, Goodluck!
Classics are great, because they are full of figurative and rhetorical language, a wide vocabulary, thought-provoking themes, etc. There are several classics lists online, so you can search for those. I would personally recommend One Flew Over the Cuckoo’s Nest, Lord of the Flies, and Candide, as I found them very interesting reads.
Don’t start with Candide… no offense, but ugh…
@intparent What’s wrong with Candide?
Depressing. Might be the most “accessible” Voltaire work, but that is not saying much. The OP will likely stall in a hurry in their attempt if they start there.
Start with whatever you feel like reading and makes you want to stay up reading
Always have a book with you - and read it whenever you’re in line or waiting for anything (even the microwave to beep).
This will help you build speed naturally and this’ll help tremendously later on.
Second, get in the habit of reading one newspaper or magazine newspaper per day. The easiest ones are on UsaToday, but anything will do - mix it up, from National Review to Mother Jones to Harper’s to Wired.