The Digital Mentor offers you interactive tasks and different kinds of support. With it, you will get certain hard skills not just in stock but at your fingertips. Free set of exercises to try the idea.
Having completed it myself and considering myself a seasoned manager, I stumbled upon more then a handful of tasks where I had to scratch my head before moving forward. It was fun! No regrets for money invested into upskilling this way. Great to see this tool available in English, so now I can recommend it to my colleagues.
"Tuuld tiibadesse!" as we say in Estonia on this matter :)