I'm growing three excellent Russian paste type tomato varieties with pepper-like elongated shape. There are:
1. Moskovskiy Delikates (Moscow Delicacy or Moscow Delicious)
Red elongated fruits, high production, good flavor for a non-beefsteak tomato, vigorous indeterminate habit
2. Frantsuzskiy Grozdevoy (French Clusters)
Red elongated fruits, high production, not so vigorous and high as the previous variety, good flavor for a non-beefsteak tomato. This non-commercial OP variety has been developed recently for Siberian indoor growing conditions.
3. Zolotaya Rybka (Gold Fish)
Golden-orange elongated fruites, very high production on a vigorous plant, not so mild flavor for an orange fruited variety
Photoes will be published here later today
P.S. But you can make a good sauce from any meaty tomato with rather good flavor, not only plum/paste type