There is no such thing as a non thunder machine because it is physically impossible to create a machine so large to even contain the lightning strike let alone to make it disappear. But the are some natural non thunder machines for example the ground which discharges the lightning into the ground.

No there is not because the lightning is so hot it melts through everything. Also thunder is random and is hard to attract.

the best TM to use on shinx is thunder

Sunyshore City, Underground, and in the Solaceon Ruins (Dowsing Machine).

To obtain Thunder Fang in Pokémon games, you can either teach it to a Pokémon using a TM (Technical Machine) or breed a Pokémon that can learn Thunder Fang with a parent that knows the move. In some games, you can also receive Thunder Fang as a prize or find it in the wild.