I think big manufacturers' profiles for paper and RC media tend to be pretty good.
If over a few dozen images you can't find anything to complain about, and if say the PrinterEvaluationImage mentioned earlier prints so that you can see the black patches down to at least RGB 16 or so, and the white patches up to about 252, and if the yellow leaves separate about the way you see them on the screen, and the overall feel is pretty neutral, you probably already have a profile that is as good as any you could have made or make yourself.
But I have noticed that canvas media is kinda slippery in the profiles department.
There seems to be more batch to batch variation in canvas than other media, and I have seen really significant improvements in the profiles that I have made for canvas versus the canned profiles, even the ones from Epson, BC, and Lexjet. Also, over the years there been some sudden major changes in the same brand of canvas, for which the manufacturer did not offer a new online profile.