Dark Eyes ("Black Eyes", "Les Yeux Noirs") is probably the most famous Russian romance song.
For Guitar solo (Classical or Acoustic Guitar with nylon strings, fingerstyle).
Early internediate.
With tablature.
With finger position suggestions.
With simple downloadable mp3 just for audio help.
Pages : Two (2) pages, 1' min.

Bridge Over Troubled Water,  became one of the most performed songs of the twentieth century, with over 50 artists, among them Elvis Presley and Aretha Franklin, covering the song.
Here is a version for Classical Guitar Solo, with tablature.
Pages: Four (4) pages, 3:34' min, early intermediate.

Quizas, quizas, quizas, sometimes known simply as Quizas (perhaps), is a popular song by Cuban songwriter Osvaldo Farrés. The song has many cover versions by artists as Bing Crosby, Nat King Cole, Ben E. King, Doris Day, Paco de Lucía, Andrea Bocelli   and many more.
For Guitar fingerstyle Solo or Guitar and Voice.
Early Intermediate. With standard notation and tablature (TAB).
With Lyrics and melody line.
Pages: Three pages (3).

Love Theme from St. Elmo's Fire (theme to the movie by David Foster) was written by Canadian composer/producer David Foster.
This is a lovely version for fingerstyle guitar (classical or acoustic guitar).
Early intermediate to intermediate.
With guitar tablature. With some finger-positions suggestions.
Pages: 2 1/2 pages, 2:45' min.

It Don't Mean a Thing (If It Ain't Got That Swing) is a 1931 composition by Duke Ellington.
It is now accepted as a jazz standard. Ellington's 1932 recording of the song was inducted into the Grammy Hall of Fame.

For Guitar (classical or acoustic) solo. Early Intermediate.

With standard notation and tablature (TAB). With lyrics and melody line. With guitar chords.

Pages: Three (3) pages