Like you said at the end of the list, "Beginning to Intermediate", but that list is hardly that.
I know that there are very few pieces that are beginner or intermediate, that's why I am seeking advice from experience folks like you all.
Er…

Below I have put the grades in Minsmusic suggested pieces. As you can see they do vary from beginner to intermediate (grades 1- 3: beginners – grades 4 – 6: intermediate), as she said (good selection too).
If you are interested in super easy pieces, then try this thread:
https://www.pianoforum.net/cgi-bin/yabb/YaBB.cgi?board=teac;action=display;num=1075165020Bach Minuet in G from the little notebook – grade 1
Bach Prelude No.1 from the well tempered clavier – grade 3
Beethoven Fur Elise – grade 4
Beethoven Minuet in G – grade 3
Beethoven Moonlight Sonata – grade 5 (1st mov) – grade 6 (2nd mov) grade 8 (3rd mov.)
Beethoven Six Variations from the opera La Monlinara Grade?
Brahms Waltz in A flat Op.39, No.15 – grade 5
Brahms Hungarian Dance No.5 – grade 5
Chopin Prelude Op.28, No.7 – grade 4
Daquin Le Coucou – grade 6
Debussy Le Petit Negre – grade 5
Dvorak Humoresque – grade 6
Diabelli Rondino – grade 3
Fibich Poem – grade ?
Grieg Anitra's Dance – grade 4
Franck The Doll's Complaint – grade 4
Handel Largo – grade 5
Haydn Gypsy Rondo – grade 4
Liszt Liebestraum – grade 8
MacDowell To A Wild Rose – grade 4
Mendelssohn Venetian Boat Song Op. 19, No.6 – grade 6
Mozart Alla Turca (from Sonata K.331) – grade 6
Mozart Sonata K. 545 (complete) – grade 5
Offenbach Barcarolle – grade ?
Rameau La Tambourin - grade ?
Rimsky-Korsakov Song of India - grade ?
Tchaikovsky Italian Song Op.39, No.15 – grade 3
Scriabin Album Leaf Op. 45,No.1 – grade ?
Schubert Serenade – grade ?
Schubert Moment Musical Op.94, No.3 – grade 6
Schumann The Happy Farmer (from theAlbum for the young) – grade 2
Schumann Traumerei - grade 6