We all know them, fake, bootleg, ..., Lego clones that mostly originate from China.
Besides the sometimes questionable quality they are often one-to-one copies of excisting Lego sets.
Most of the companies producing these clones operate in darkness to avoid prosecution for about every copyright law in effect.
As such is it quite challenging to find an overview of the existing sets.
If you are in for a Chinese adventure, dealing with aliexpress.com (Chinese ebay or better the ebay from the far East but with laws from the far West), comparing cheap bootleg Lego sets of questionable quality, this is your site.
I try to give an overview the most popular bootleg Lego sets for common brands such as, Lepin, Bela, Lele, Decool, Shen Yuan, ...
The site is far from complete and I'll try to update it following my availability.