What more could you ask for? PrepLounge has the most members by a country mile!
No other similar platform with such level of activity, community, coaches, Q&A, ....
Preplounge is the best established in my eyes. And I have never heard of one that does the same thing for free if the premium fees are making you look for alternatives. I do know there are some facebook groups that connect candidates, but it's of course a much less focused functionality.
PrepLounge has an excellent platform, marketplace, and community! Not sure what it's not currently doing for you?
I don't see anything similar to the PrepLounge. What I knpw is that on the other websites that help to get into consulting you can only take a coach or take some courses.