That is one way to open up the bottomless pit of topics.
OK so there's waxes and lubes, the often mentioned WD-40 will come up in every damn conversation about it so i'm mentioning, it now.
Simple advice about it, Don't use it..It's not meant for that. Graphite based lubricants; The same can be said for that where chains are concerned, just because they sell it doesn't mean it is the right one for the job. I used to have a very detailed write-up about the subject in another bike owner forum but it's gone now.
I've been using PJ1 Blue for all weather riding for most of the time i've been on MC's. It works well and doesn't fling much if at all, it has successfully prevented rust from forming on the chain ( i rode the 850 during the winter on treated roads).
FortNine did an interesting chain lube round-up although it doesn't really encompass much of whats out there it was thorough with what they had available.
I've not used chain wax on anything except bicycles, they work OK but I wouldn't trust something that undergoes the level of stress and friction that a MC chain does. The consensus i've seen regarding wax, is similar to the other two alternative lubes mentioned above where motorcycles are concerned.
Most lubes will fling, some go on clear but after a while they will turn dark-ish.
There is one or two dry-lube types i've tried that go on clear and leave it looking spotless, its the perfect thing for a show bike that never goes in the dirt. The coating doesn't last very long but works great for that purpose.
I took a motorcycle to a mechanic to have it worked on when I was testing the dry lube, I had lubed it prior to the trip over. The mechanic took one look at the chain, touched it then put chain oil on it. :D It's invisible stuff!
Lastly chain cleaning products; In the US A brand called Honda Chain Cleaner is something I swear by it for a few reasons.
One it works, really well! ; Second the price and quantity I can buy it in is better than the competition. I paid about 40 bucks for what amounts to 1.5 years worth of chain cleaner, I log a lot of chain time.
I've had the opportunity to try a whole host of other alternatives, i always came back to this one.