This is going to depend on many things but mainly your budget! There is not a working easy miner I’m afraid.
If you have a games computer with GPUs, minimum requirement these days probably, then you may decide to look at mining with them ,when you are not playing, so you will be looking to mine on groestl probably, Idk really because I mine with ASICs.
These are dedicated mining machines and have no other purpose, than to mine crypto as efficiently as possible. They currently mine Sha-256, Scrypt and recently Qubit.
Mining DigiByte is not unlike mining anything else using the same algorithm but there is currently no Digibyte guide to doing it, as far as I’m aware that is.
You can run a full node core wallet and solo mine but I wouldn’t think that would get you far these days even with a decent games pc but with ASICS that’s a whole different story.
 You will hook up with a pool probably and some of these may even be a better source now for some of the mining info you are seeking.
Sorry I couldn't point you to some beautiful DigiByte guide, maybe you will write it one day.