Hello,
some info can be found in the old "Le torpediniere Italiane 1881-1964" edited in 1974 by the Ufficio Storico of the Italian Navy. I think that there is a much more recent edition.
Any way, the so-called "tipo Schichau, costiero di 2^ classe" (coastal, 2nd class) was present in the Regia Marina as follows:
- torpedo boats 56S to 75S, 84S to 154S some built in Schichau Elbing, some other in Ansaldo Sanpierdarena, Pattison Napoli, Guppy Napoli, Cravero Genova, Odero Sestri
- torpedo boats SIRIO, SAGITTARIO, SPICA, SCORPIONE, SERPENTE SAFFO, type Schichai 25-knots (not coastal), probably not included in your scope.
Hope this helps

Fabrizio