I think those are all good choices and I don't judge you for k8s. It all depends if you know it already. We use GKE with auto-scaling kubernetes and it's great

I think those are all good choices and I don't judge you for k8s. It all depends if you know it already. We use GKE with auto-scaling kubernetes and it's great and took 2 day to get it terraformed sufficient to where it feels like what I had at my old job. If/when you need to start "real company stuff": AngelList Mercury Ramp Rippling HubSpot I've been pretty impressed with all of those.