Yes, unfortunately that particular Troy Lighting collection has been discontinued. It's tricky to find lights that look very similar to it, but here are some potential ideas...

Minka Lavery Camden Square

Millennium Lighting Lakewood

Hinkley Flourish

Feiss Marquelle

Quoizel Sabrina

Quoizel Knotting

Kalco Atelier

I know these don't look very similar, but if any of these catch your eye, great! If not, let me know and we can keep looking.

Here are two that are similar (ish). These are from Sea Gull Lighting. Have a look at their site to see if anything else catches your eye. Sea Gull Lighting

6531503EN-808,Small Three Light Hall / Foyer,White Wash · 詳細

Sea Gull Lighting Pendants · 詳細