I believe all our clan mates are on PC, I am not sure you will get much luck.
Try asking on the G+ Warframe community, I know there are a few PS4 players there. (Or of course the official Trading post thread for PS4 @warframe.com)
*legend sneaks in: "psst! https://forums.warframe.c ... um/180-trading-post/
- pchttps://forums.warframe.c ... um/256-trading-post/
PS4 doesnt have an official trade thread - enjoy!" *throws smoke bomb*