I would really love to have a salvini pair..
I say a pair of Dovi's or Umbee's, they get huge and are very active, and color really pops when over 10''.
Dovii/Umbee pairs (and some, myself included, would single males) get too big for a 150g.
OP, I chose other for Trimac pair.
Ive had all the other fish listed as adults or sub adults and trimacs are the most interactive in a friendly and non psycho way.