Richard Barthélemy's 'O ffuoco' is a tempestuous piece that utilizes harmonic tension to represent fire. It shows a greater degree of keyboard virtuosity compared to typical salon miniatures.
The main challenge is executing the large chords and rapid passages with controlled intensity.
Comparable difficulty and character — good candidates for what to learn next.
'O ffuoco is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 6.
You should be comfortable at Henle level 4 — meaning you can already play level 3–4 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of 'O ffuoco lasts about 3 minutes.
'O ffuoco is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include 'E mmanovre by Richard Barthélemy, Allegro in A major by Max Reger, Allegro con brio in B minor by Ferdinand Praeger — see the full similar-pieces list on this page.