The modern term for a Feder is any sword for sparring, particularly in a tournament. Tends to be designed for harder sparring, thicker metal, thicker edges (4mm). Good Flex for thrusting.
The German Tradition tends to be longer blades and a schilt (tiny shield near the guard), the Italian Tradition never does. Fiore swords tend to be shorter, as they are more designed for training as if you are in armour (half-swording). But, in a HEMA tournament, thats typically not done, and its all out war.
First you need to decide if you are training, or need a trainer/tournament sword. Many Fiore Groups tend to train and practice and don't do the tournament scene as much. See your instructor.
The
best swords for training and light/moderate sparring are our '
Technique' line of swords. They are historically scaled, good balance, weight, and flex, and most don't have a schilt. They are about 3mm thick. So thinner steel, so I don't recommend then for tournaments. They will not last as much. People do it, but they are voiding the blade more.
If you are sparring and training, then these are the better choices:
These swords have a much thinner edge and are only used for training and very light controlled sparring. Use only if you club approves.