[Homelesshacker1406]

Does some knows an good WYSIWYG Editor ?

it can be an paid one or an free one.
Also I am open for services where do you have an drag and drop homepage creator.

[Oh_Well]

Well, the king is still TinyMCE if you want A LOT out of the box features.

That said, I've worked with DevExpress, and while it can be a bit strict or tricky to work with at times, you can build some pretty advanced editors with it. Things like outlines, drag&drop, selections, real-time updates based on dropdowns outside the editor, and more.
If you need the freedom to fully customize your setup you can try this, but if you want something fast you could go with TinyMCE.