You’re on the right track. The best GTM plays usually come from watching for buying signals instead of sending to a giant list and hoping.
A few more that work well are funding rounds, new exec hires, new tool stack changes, job posts for the role you sell into, website traffic spikes from target accounts, and review site activity when a company starts comparing vendors. Even little stuff like a team moving into a new market or opening new locations can be a good signal.
The main thing is to pair the signal with ICP fit, otherwise you just create more noise. That’s why tools that watch signals and qualify leads before outreach tend to beat generic outbound. Tools like instantly and sendio ai sit in that lane, especially if you want LinkedIn based outreach that feels tied to what the account is already doing.
For the satellite image idea, that can work, but I’d keep it as one signal among many, not the whole system.