i want to play some pieces in the classical and romantic eras of about grade 7 standard. any suggections?

Mozart - Sonata Facile in C K. 545
Beethoven - Sonate op. 13 2ème Mouv.
Chopin - Nocturne op. 9-2
Schubert - Impromptu op. 90-2 - may be a little harder than 7? Any thoughts?

There're some ideas just by whacking through my Yamaha book. Let us know how you get on

The Beethoven Op 49 Sonatas. First movement 'Moonlight' Op27 No2 as well. Some other Beethoven sonata movements eg Op10 no 3 the minuet movement, Op 10 no 2 second movement, Op 14 no 2 second movement, Op79 second and third novements (You could try the first as well for fun)
Mozart first/second movmts K332, all of K309 , both set for Grade 8 but are to me really Grade 7 standard.
Chopin - A minor and B Minor Waltzes. Quite a few of the Mazurkas. The two G minor Nocturnes.
La fille aux Cheveux de Lin (Debussy)
Shostakovitch - Preludes Op34 nos 7 and 22
Granados- some of the Valses Poeticos
Quite a number of Scarlatti Sonatas, try Book 1 of the Assoc Board edition.

Those just off the top of my head. You could look at some syllabusses (Syllabi??) new or old from different boards.