Power Meter Options for FSA Sub Compact

I’m not that technical, but if that was the same crank as was on my AL Topstone, I couldn’t find any option. I had two 4iiii left crank (ultegra on the “good” bike, 105 on the winter bike), so for me the cheapest option was a GRX crank set, and move the 105. Only clearance issue I had was the bottle cage on the underside of the downtube, which I didn’t use too often anyway.

If I was starting from scratch I’d be very tempted by the new Garmin pedals (or be waiting to see if any other options come out).