Chrono is a very good class, perhaps the most viable wizard class going into the current rank 8 and beyond. Good classes to combo were already mentioned, where linker2 and cryo3 are popular choices. I have a cryo1-linker2-chrono3-enchanter myself, things are fine, though I regret taking cryo1 instead of pyro1.
If you want to cheese the early game, wiz3-linker1 is a good combo because magic missiles and links obliterate everything.
If you’re interested in the late game though, this combo stops being so effective…for now…so resigning yourself to full support might be a better option. But honestly chrono remains one of the best support classes in the game, just not very good solo. I guarantee you however that even if you intend to play solo, as a chrono you will not find it difficult to get into a party…and you WILL want to get into a party.
Good luck!