A lot depends on the task, but if you need something universal for working with content, Chat GPT does a great job. You can generate texts, do rewriting, select keys and check uniqueness. The interface is clear, you don't need to understand complex settings. If you need to test it, here is Chat GPT https://pr-cy.io/chat-gpt/

Sometimes you have to choose between a bunch of sites and don’t know where to stop. Personally, I use Nation AI, it’s a free tool with quite a wide functionality. It helps with various tasks, from generating ideas to simplifying work with texts. Overall, I think that its functionality is quite sufficient for most tasks, and it’s a good alternative to paid services.