After learning Hangul, how should I continue studying Korean?

Hello! I am a beginner who has just started learning Korean. So far, I have learned Hangul through 'Talk To Me In Korean', and now I want to continue studying Korean for free. Are there any free websites, apps, YouTube channels, grammar resources, or vocabulary learning methods you would recommend? I also consider listening and speaking practice to be important, and I would like to know about a study plan for beginners. Ultimately, I want to build a solid foundation so that I can understand Korean dramas or content without subtitles. I would appreciate it if you could share your experiences on what methods were effective during your beginner days! 😊