I think it's very considerate of you to think of this. I know that when we're at the point of preparing for our own death, it can be exceedingly hard to think about practical affairs for those left behind.
If you have any assets at all, try to organize a will at the very least. Many countries allow for online prepare-your-own-will kits that you can buy online and then have notarized or whatever is required by the laws of your country (try to research to ensure that the one you select is legit; bear in mind they all have a cost involved, but it's leagues cheaper than dealing with a lawyer). If you have superannuation (I think it's called a 401k in America; I don't know where you are, and I don't know what each country calls it, but basically a portion of any past work income that is automatically set aside in an investment account you can't access until retirement), these accounts may not fall under the jurisdiction of a will, or at least, where I live, for some moronic reason, they don't. Look into things like binding beneficiary nominations to ensure any assets in such an account go to those whom you want them to go to. I'm sure it all differs by country, though. I don't have much to my name, but I've still set up those two things as, if nothing else, they may help offset the expenses incurred by my death.
Personally, I'm looking into advance care directives and DNR orders of late. Unfortunately, these supposedly often don't apply in the case of suicide attempts, but it's worth looking into all the same, I believe.