What sort of budget does your org support?
I had to look into ~19 imagery firms for some telco work in Canada last year.
There are private jets that can capture 10cm imagery and can pick the ideal weather window to fly in.
There are also firms that fly balloons 20 - 80 KM off the ground that can capture 4cm imagery.
The space is pretty busy.
Really busy, from satellite constellation tasking to planet and co basemaps to the sentinel family to aerial imagery to helicopters, drones and even blimps.
They all have their unique combination of cost, resolution, area coverage, revisit rate and spectral modes. Quite difficult sometimes to find a good fit for the underlying problem. What‘s clear is that resolution and revisit rate correlate with cost. Shit‘s expensive.
We're volunteer driven and currently rely on personal donations, so we're scrappy. We could probably justify somewhere in the region of $10k/yr. The jets/balloon angle is interesting, thanks - hadn't occurred to me, and I'll search through what's out there.