I don't think TRD ever made a tower bar for the gen3's.
RM makes a good one (about $100) so does whiteline. There's also arospeed and ractive along with the slew of horrible ebay ones.
Your best one would likely be either the RM tower bar or the whiteline. Again, expect to pay for it though... Judging on design alone, the Arospeed seems to be strong. I can't say for sure but mine's coming in in about an hour or 2, so I'll know then.