I replaced Evernote with Joplin a year or so ago and am pretty happy. It's a little rough around the edges, but it works great and is actively updated. And all my data is stored where I want it to be, with no monthly bill, and no one trying shove "chat" or "enterprise" features down my throat.
Also, as the desktop client is a JavaScript app, it was relatively easy to go in and change a few things that I wanted tweaked. I hate MarkDown with a passion, so I just turned off all that stuff in the toolbar and use it as a plain text notepad that syncs. Works great. (At some point I need to make the effort to figure out the options dialogs they have and submit a pull request where this can be turned off/on permanently.)
I do wish it would clean up the weird note/todo item duality (at least in the options). You can treat a note as a todo item, so the list of notes acts as your list of todos. Or you can just use a note and put the todo items in it (which is what I do). I just don't think the folder interface works well for the todo item paradigm.
Anyways, highly recommended if you're still spending money on Evernote and don't use any advanced features. If you're using web clips or other stuff, someone else will have to chime in.