There’s an loads on YouTube, best to have a look and find someone that you like or works for you, most are very informative, some are dull and boring, others are massively hypo, all depends what you prefer.
I have a little playlist of vids I find helpful, your welcome to it, but just search lightroom tutorials and you’ll have thousands to look through, might be better to be spacific, like lightroom catalog tutorial or lightroom basic colour grading etc.
Hope that helps