I have more free time now and want to use it to improve my English skills. Do you know any good online courses?
I actually enjoy learning online. It seems to me that it is at least more convenient, since it significantly saves my time and the teacher's time. There are online courses, and also platforms like https://promova.com/ (https://promova.com/page/learn-english-modals), which have a lot of educational materials for self-study. I advise you to start with the site, take a test on your English level, etc.