Frozen from the disney movie is what I worked on to get my piano chops back. I play mostly drums but piano was what i started on at age 5 then kinda forgot how to play it as I went through instruments.
The left hand of Frozen is kinda tough but you can do easier modes with it and the right hand plays the melody and it’s not too bad.
This one. Take the ~ out from the front of the link.
~Canon in D - EASY Piano Tutorial by PlutaX https://youtu.be/5RHX1pQj05A via @YouTube
It’s such a lovely song.
Get a book for piano students at your level. They’re full of arrangements made to cater to people learning.
Beethoven’s “Moonlight Sonata.”
The first movement is easy to play, is INTENSELY dark and moody, and while is not as recognizable as Fur Elise, would still stop anyone in their tracks so they could listen.
On top of that, as you get better, the second movement is a lot harder and will keep you busy for a long time.
…aaaaaand if you ever truly believe you’re good at piano… the third movement is there to prove you’re not. 
Because this difference helped George Harrison, right? You’ve presented a compelling case “Learn theory.” Arguing whether the snare in reggae comes on the 3 or on the 2 and 4 in half time makes absolutely no difference.
This form of musical elitism really needs to run its course.
And yes, everything else is just feel. A very small percentage of famous musicians actually became famous by sitting down and studying theory. The vast majority of them hardly even had lessons and simply listened to records and played. I don’t care if it’s Mark Knopfler, Lindsey Buckingham, Jim Morrison, or Bob Marley, they didn’t become successful or write good songs by learning the difference between a diminished chord and diminished triad. You learn to break the rules by going for a specific feeling. Being able to solo atonally constantly switching modes does nothing except promote jazz wankery. As much as I love Rick Beato, he co-wrote a mediocre 1 hit wonder for another band.
Learn Moonlight Sonata.
November Rain
I enjoy slow, relaxing piano songs and the music that helped encourage me to continue playing piano was Enya.
Specifically, her Shepherd Moons album’s sheet music. The songs “No Holly for Ms.Quinn” and “Evacuee” sound gorgeous, but aren’t too hard to play. They have nice, repeating patterns for your left hand, while your right gets to do all the fancy stuff. It’s a great set of music for beginners.
Her other book “Day Without Rain” is also good, but has a few more rhythmically challenging songs that might not be fun if you’re still learning.
Hope you have a great time learning and playing!