Has someone already produced a pack containing Colonialist Legacies, More Civilizations or Tomatekh like the JFD one?
I have issues creating one myself because half of the mods don't load.
I do not believe so. Regarding Colonialist Legacies specifically, a good number of his mods have coding quirks that require specific edits for multiplayer (the unique improvement in the Inuit civ, for example, only performs it function if it detects the owning player is the "Active Player". This causes desyncs every turn in multiplayer once the improvement is built, because in the multiplayer the other human players are never the "Active Player" on any given computer).
Part of the reason the JFD pack exists is that JFD codes his lua extremely scrupulously, I believe because he has done multiplayer stuff before. Hence, his civs are usually plug and play with multiplayer.
EDIT: That being said, I can try to debug why they don't load when you make your modpack? What exactly is the issue?