EVOSID Road Bike Crank 165 /170/175mm Chainring 40/42/44/46/48T Gravel Bicycle Integrated Fire Crankset 11/12 Speed Folding Bike

If you are running a 24mm spindle, the easiest swap is for a Magene P5015 Base. It's a spider based Powermeter that comes with cranks (24mm spindle). So a super easy swap. Might need new chainrings though as they are BCD 110 4 bolt. It's as precise as they get and for ~250-300 USD depending on sales and local taxes, it's hard to beat on price either. Since you already have a 3bolt crank, you could also get the standalone Magene P515. That one has a 3 bolt SRAM style mount. Still would need new chainrings and the price isn't much cheaper if at all.