While many in-person classes are available such as those offered by our local family history center, for those who prefer their genealogy instruction online, FamilySearch offers many free webinars each year. These may be accessed here: https://www.familysearch.org/en/wiki/Family_History_Library_Classes_and_Webinars
There are also videos available on many key topics in
beginning and intermediate family history research here:
https://www.familysearch.org/en/wiki/Classes_in_the_Learning_Center