there is no universal PM tool - MS Office is the most commonly used suite of tools. MS Project knowledge might help if you are working on traditional projects and you could consider looking at Confluence, JIRA or Trello for projects following an agile life cycle.
You can get a lot of good info on these via YouTube and other online free sources but the bigger cost constraint might be to get access to these tools.
When I had initially started to look into this i had found one site called projectmanagement.com which appeared to have a rather slick interface - but, this is from a newbie's perspective so pretty pictures distracts me rather easily ... squirrel. :) Saving Changes...
Whew, that is some ask. Go through Youtube and MPUG for MS Project related videos. As Kiron points out, there is not universal tool There is a lot of commonality though. Just search around, watch some videos, play around if possible. Some local libraries have access to Lynda.com If you have a library card, so check that out. Also, check out sites like udemy.