I have never tried a Jinhao. I would like to hear what you think of it.
As for ink. there is a whole world out there. It is important to remember that fountain pen ink is different than other inks like “India” ink. Make sure that you are purchasing ink for fountain pens.
One of the best ways to try-out inks is to go to a reputable fountain pen website and see if they have “sampler” packs. The Goulet pens site has packs of just about every color in small vials that will fill a pen about three times. I have yet to get through all of my samples. Get a few ink syringes for filling.
That said; I will put a plug in for the Pilot Iroshizuku line of inks. They come in various shades but all are top-notch. They have great saturation and they make your nib glide better than most 
You can get these in sampler packs too. They cost a bit more, but they are well worth it.
Cheers.