Best Dragon Ball game to buy?

I’ve recently gotten back into Dragon Ball, having binged through the entirety of Dragon Ball and Dragon Ball Z Kai, started watching Super, and bought both English box sets of the manga. But as a gamer, I’m really wanna try some of the Dragon Ball video games. But can’t decide which to spend my money on.

The main games everyone talks about that still seem to be regularly updated are Xenoverse 2, FighterZ, Kakarot, and Sparking Zero. Is this right?What are these games like, and how do they compare to each other? Which are worth buying and which aren’t?