If you are looking for a way to seek help with your coursework then going only for a legit service would be the way to go. You need to protect your interests and save yourself from plagiarism which is frowned upon by colleges. There are all sorts of services that you will come across online but if you are not careful, you might end up going with services that are not legit. Things may simply end up working against your interests.
Be careful when going for coursework help on the internet and always try going for popular services. If you go with services like Chegg and Course Hero, you will be safe. These are popular and well-recognized services as they simply make available all resources as well as coursework material that students could benefit from.
You can find further details about them online through different websites. They have their own websites too where you could get all the details that you may be after. There are also sites that review these two services along with many others of a similar nature.
You can read more on the website of Change for specific similarities and differences between Chegg and Course Hero. Get all the details so you can safely go only for a legit coursework help service online.