Coffee Appreciation

Can anyone think of anywhere within spitting distance of kings cross (or en route back to stoke Newington) where I can pick up some decent beans? Am running dangerously low and my usual vendors of Monmouth or nude espresso are a bit beyond a 40 ish minute lunch break dash. Is caravan on exmouth market any good?

there's square mile at tina we salute you or fazenda at cafe oto both nearish dalston/kingsland