A friend of mine recently bought me Jim Murray’s Whisky Bible. Not only does it give you endless ideas for what to try next, it is a fantastic read. Some of his reviews are just bonkers. He does Irish, Japanese, bourbon (check out the Knob Creek entry) etc as well. Well worth a look.
On the whisky itself, I’d go with the sampler idea. Then you can work your way through some different options to see what you like.