Advice on a IPTV app and line for an LG smart TV


Hi. I'm looking for advise on what's the best IPTV player for my Smart LG (Web OS) TV. My Duplex IPTV subscription has come to an end and I cant renew it on Android or the Microsoft store (I think this is a known issue). My line is about to expire too and I cant find the seller.
So need a good new IPTV app and line.