Cillian Sheridan seems out of favour at Dundee, potentially him? Not clinical but could probably do a job for you lot.
There's talk of Matthew Cudjoe wanting away from United, not a striker but definitely someone who can make something out of nothing.
Nadir Ciftci is still without a club after being released by St. Johnstone in the summer, certainly a goalscorer in the Championship if he's anything like his past self.
Jahmal Hector-Ingram is another who was released by St. Johnstone in the summer, he didn't actually ever play for The Saints but he scored a goal every 261' in PL2.
All pretty well-known names, 3 of which on a free but if Arbroath are desperate I'm sure something can be done.