Chili reds you can have (may need a permit?) and any here in the US are micro-chipped. They cost about 10K last I saw.
There are also red tipped golds that look really nice but I've never seen one for sale.
Local store here just got busted for selling gold arrowanas illegaly (also was selling turles under 3" I warned the owner it was not legal but he didn't care).
We used to have an australian arrowana which
IMO is a little nicer than the silvers, they tend to have black or pink tinge to the edge of each scale and are legal (check with your state of course).
They are nice, just get too big and too delicate to have with our tankbusters.

-april/hisba