theres a few sorts of drones so ill try and summarise them
Light (Scout) Drones - Hogoblins, Warriors, Hornets and some amarr one. Hobgoblins are generally the best for missioning, Warriors best for PVP
Medium (Scout) Drones - Hammerheads, Valks, Vespas and some amarr one. Again Hammerheads for PVE, Valks for PVP
Heavy (Attack) Drones - Ogres, Berserkers, Wasps and some amarr one. Same racial flavours for PVE and PVP
So they're the drones youll commonly see. Each sort of corresponds to a shiptype, Lights are for killing frigs, Heavys for Battleships. Always always always have 5 lights before you carry any other drones. Oh and S/M/L amarr drones are basically never useful
Then you get Sentry drones. Each race's sentry trades damage for range - Gallente shortest, Caldari longest. All of these are useful, but only Battleships and some Cruisers really can carry them. These dont move so you have to be next to them for them to return to your dronebay - think of them like deployed turrets or something.
That's basically all the drone stuff you need to remember for missions. Can't stress enough how important 5x T2 light scout drones are - In a battlecruiser/battleship you'll need these to kill scramming/webbing frigates because you probably wont be able to track them with your massive guns.
Small hourglass island
Always raining and foggy
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