If you mean the common ostinato pattern such as Romanesca, Ruggiero,
Passamezzo, etc., while we today can perceive these as harmonic patterns, in
the 16th century they were generally expressed as linear bass patterns.
There is a PDF file at
It's not exactly what you're looking for, but comes close.
Fuzea Editions of France has a (cheap at 17,50 euros) edition of 50
Standards of the Renaisance and Baroque eras. Theme + bass and figures.
Variations of the themes and variations on the themes. Some in different
keys. Very convenient
