Froberger's Capriccio in F major is an intricate contrapuntal work that demonstrates the mid-Baroque transition towards more virtuosic keyboard forms. It features complex imitative writing and bold harmonic movement.
Achieve absolute independence of fingers to clearly define the complex contrapuntal lines.
Comparable difficulty and character — good candidates for what to learn next.
Capriccio XV in F major, FbWV 515 is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 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 Capriccio XV in F major, FbWV 515 lasts about 5 minutes.
Capriccio XV in F major, FbWV 515 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 Capriccio X in D minor, FbWV 510 by Johann Jacob Froberger, Bergamasca by Girolamo Frescobaldi, Bunte Suite by Ernst Toch — see the full similar-pieces list on this page.