Polymaker Fiberon PETG-ESD Filament Black 1kg – Electrostatic Discharge Safe, Tough PETG 3D Printer Filament for Electronics Industry

The most engineering-minded consumer brand in this space. Polylite is their everyday PLA, PolyMax adds impact resistance, and PolyWood nails the timber look. They publish data sheets and actually explain what's in their formulations.