As with the passage of time more people are entering the cryptoworld and we can see there are many scammers nowadays so can you suggest any ways where newbies could earn btc without investment.
In your question you have a answer, now the best place is Bitcointalk, here you could earn without investment, only work with sincerity and you could earn easily in this platform, and also you could see in threads especially in marketplace, sometime you can get better work and earn bitcoin. It is also best place because here you get correctly information about investment, so don't worry about scamming.