I don't know if is possible draw a picture like the next with tikz and some random related command:
TeX - LaTeX Stack Exchange is a question and answer site for users of TeX, LaTeX, ConTeXt, and related typesetting systems. It only takes a minute to sign up.Sign up to join this community
Basically, yes, you could do this. However, you could not do it automatically or randomly because it requires the programme take account of the shapes of the glyphs, which TeX knows nothing about. To TeX, everything is just a box. It neither knows or cares what is in the boxes. But this kind of word cloud requires things to be slotted together in ways which are sensitive to the shapes of the characters and not just to the size, location and rotation of the boxes containing them.
That is, it would be bonkers to try doing this in TikZ. Like trying to use a rose petal to bail out a sinking ocean liner. Best not to try.