I do! Here is a list of the best free resources that come to mind. They are all digital (print resources tend to cost money).
Talk to Me in Korean (TTMIK).
This website provides video explanations and vocabulary for everyday
conversation and some grammar. The order/organization of the topics is
fairly random and not super in-depth, so I recommend it as a
supplementary resource or overview.
Naver’s Korean/English Dictionary. This is the English-Korean and Korean-English dictionary provided by Naver, one of South Korea’s most-used web portals. I suggest using it carefully- for example, you might get a lot of results for one word, but they might not all have the meaning you are thinking of. It is, however, pretty reliable and has a very large number of words. I find it most reliable for checking definitions that I read elsewhere or that I think I remember but am not sure of.
HelloTalk. This is a mobile app that you can use to
connect with other language learners around the world. Once you learn
some basic Korean, you can use it to talk with native Korean speakers
and possibly help those who are trying to learn a language that you
speak. It’s a great way to practice writing and speaking and to make a
new friend. (As always, be careful and protect your privacy on the
internet/mobile apps.)
KLEAR.
This is a website for the KLEAR textbooks printed by the University of
Hawai’i, which has arguably the best Korean language program in the U.S.
Even if you don’t buy the textbooks or pay for a membership, the
website has slides about grammar rules from the textbooks and audio
conversations to listen to.
Verbix. This website allows you to search any Korean verb and view various conjugations of it.
How to Study Korean.
This website has well-explained Korean grammar lessons organized into
distinct units and topics, as well as vocabulary lists and additional
resources.
Memrise.
This website has many free language “courses” that help you practice
and memorize vocabulary by repetition, matching, multiple choice, and
typing. There are a number of Korean vocabulary courses available, many
of which take their vocabulary directly from a book, which makes it a
great alternative to buying a Korean book when it comes to vocabulary.
Online Intermediate College Korean. This site from Claire You and Eunsu Cho of UC Berkeley, is a good online resource for intermediate learners. Each lesson combines a reading passage, dialogue, and audio files. Definitions of new vocabulary are included in the text, and explanations of relevant grammar concepts are included at the bottom. It might be a bit advanced for now, but keep it in mind for when you feel you’re at the intermediate level!
I also recommend the following blogs for vocabulary and grammar: cassarilla, learningtokorean, study-korean, and mykoreanstudy.
Out of all these resources, I consider How to Study Korean the most useful (for all levels) and thorough.
I hope this helps! Let me know if you have any other questions.