Polymaker HT-PLA Filament Brown, High Temp PLA for 3D Printing, Heat Stable Up to 150°C, Easy to Print, Works with Most FDM Printers, 1kg Spool

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.