Do like a WTM, very underused role The way I see I DLFs are, there are two types. The Targetman type, the physical tall, stronger players who play with their back to goal, hold up defenders and lay it off to others, then turn and get forward. The other is the more skilful and technical type who can run on the ball and can pick out others. Both are lethal and if I'm looking for one, I try and get a combination of both.
To get them scoring, it's the same as the other striker roles, they're less of a spearhead role than say an Advanced Forward or Poacher who look more to get on the end of chances, DLF's will involve themselves more in the build up so I like another attacking role with them from either out wide or deep. The DLF will still get on the end of chances like any other striker role
Here's some good reading from @Cleon about striker roles from a few years back that still holds up today