What tools, courses, apps, site, etc. did you use for your interview prep?

I’m at that stage in my job where it’s about time. About time to dust off the ‘ol resume, boot up the portfolio site server, update the LinkedIn and GitHub, and all the other million little things that goes into finding your next engineering job.

However this time is slightly different. I am at a point of experience and skill in my career where I am ready to go for large top name tech companies. Which is a dream of mine. So, I need to be as prepped, trained, and studious as possible to land one of these positions.

What interview prep courses, apps, sites, blogs ...anything, have you used and had great success with?

So far I’m liking leetcode.com.