Yeah, so as in the title, these things cost. A lot. Do you know aby forum that shares accounts or bypasses limits of free plans.
If you are a student, you should be able to organize with some of your classmates or friends.
Also, maybe consider LanguageTool instead of Grammarly, at least it’s not fully closed source.
What do you mean by Grammarly costs a lot of money? It has a free tier. Which is quite generous.
You can get a pretty decent free version of ChatGPT’s newest model by using the Microsoft Edge browser and going to Bing chat. You’re limited to how long you can have a single discussion, but it’s better than going to the limited version on ChatGPT’s official website.