I've published a bunch of free resources to help you create your own bitcoin inheritance plan. You can find templates on medium.com/@pamelawjd or on my website empoweredlaw.com. I've also given talks about this topic at LaBitConf, Honey Badger, Hackers Congress and similar events. You can watch them for free on youtube (they're not lectures, hopefully they're kinda entertaining). If you like the style and want to do more, I also published a book last year called Cryptoasset Inheritance Planning; A Simple Guide for Owners. You can see the table of contents and read free excerpts at amazon
https://www.amazon.com/gp/product/1947910116/.
Just so you know, you don't have to hire a lawyer and you don't have to trust any third party. Those are common myths, lots of people believe them but they're simply not true.
Good planning is more than just having someone find your keys. Because you won't be around to help them, and they'll be grieving and probably not too interested in your magic internet money, they might forget or worse get swindled by someone who offers to "help them". Leaving keys in a picture frame is usually a bad idea -they'll probably never find it if something happens to you - or they'll give it away to someone or send it to a charity as a donation. If you actually care about your family and friends getting your bitcoin, then you have to do something.
Of course you can always choose to do nothing, but if you do make a plan you could donate it to an open source project that you care about or directly to a developer whose work you want to support. Or an organization like the EFF that works to support free speech online.
Hope this is helpful. Good luck.