There are a lot of resources to learn Splunk that are easily accessible online. It is also easy to learn. There are several online courses you can enroll and learn from industry experts on your own from anywhere from a laptop. If you are looking for an online course to learn Splunk, then I recommend this Splunk Certification course by Intellipaat. In this course, you will learn how to search, share, save Splunk results, creating tags, making reports and charts, Also, you will learn how to install and configure Splunk, monitor, scale, and index huge volumes of searches and how to analyze it using the Splunk tool.
Also, watch this video on Splunk to get started: