I saved up a few this month and planning to invest a part of it in trading but I'm not really sure where to start. What should I trade and I'm leaning on using binance since I am confident in using it for a year now. What can you suggest?
You have chosen the right exchange as a place to trade because Binance is one of the largest and most popular crypto exchanges today, but if you are not used to trading there then you should try spot trading first with a small capital because in my opinion doing spot trading will be easier understood by beginners.
You do not "have to" pick binance though. I suggest binance to anyone who would like to wager and there is no better place than binance and I support it and will support it until they give me a reason why I shouldn't. However, just because they are the best doesn't mean that you should use them at all times.
Like for example if I was an American citizen, I would use coinbase instead because not only you will be directly depositing from the bank and withdrawing, you will also have that chance to pay taxes with their help as well, its nearly automatic, your accountant will have a field day versus binance. So, there are "some" reasons to pick another exchange depending on the situation.