I think anyone who is below 0.5% fees is going to be good. VIAC was original disrupter I believe , then came Finpension & Frankly. I don’t use VIAC though because I ended up with F&F.
But yes FP seems to be the cheapest in costs. I once read that people were not happy with 1% cash allocation of FP. For me it was not an issue but wanted to point out.