Depends what are you looking for?
For now I am learning Spanish, so can propose some sites where you can definetely improve your language skill.

For a visual learner, the app FluentU is ideal. It has a large database of visual resources and offers a 14-day free trial. It has many language-learning tools and provides tutors for free. If you're a visual learner, FluentU is a good choice. Moreover, the app is free and allows users to write journal entries in their own language. The language-learning app has many other benefits, too.

RhinoSpike is another app that focuses on listening and speaking. Its simple system allows you to share text files in your target language and listen to them to hear how native speakers speak it. By recording your voice in your native language, you can help others learn the language. This way, you'll be helping others to improve their pronunciation and become more comfortable with the new language. So, here are some of the best tools for learning a new language.
If you looking for fun chat I also reccomend go to free web chats like Callmechat or another, where you can find randomly person with native language lavel, and make friends all over the world.

Wikipedia is another great online tool for learning a new language. This free website offers millions of articles in 295 languages, so it's a great place to start your research. You can also sign up for a paid version to access more advanced content. You can also try out other apps that will help you learn new languages. These apps are a good option for beginners. There are many other excellent applications out there that can help you learn a foreign language.