If you want to try being mentored on the code you produce while learning a language from the very beginning, I can only suggest exercism.io.
You start a language track, and go through multiples exercises, receiving feedback from experienced volunteer mentors each time!
The difficulty curve is quite well made, and makes you go through all important features of the language you're learning. They're not meant to make you face actual problems you could get while coding professionally on big code bases, but the mentoring side of it neat !
It's not an alternative to anything, but a great complementary help!
It is a great suggestion. I will take a look at it. Thank you very much!
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