1.
21-22mm, 2.6 g. Reverse probably SOLI INVICTO , letter T in the bottom left.
Constantine?

2.
3.3g, 18 mm, no legend. Reverse 2 Victories holding a wreath with VOT x probably. Magnentius?

3.
2.9g , 20 mm. Radiate head. DIVO CLAVDIO probably.

4.
2.55g, 21mm, radiate head. Reverse CONCORDIA MILITVM, epsilon and another letter (F?) between the figures.
Maximilianus?

5.
20mm, 3,25g, GLORIA ROMANORVUM? Theodosius?

6.
Probably no chance with this one.
4,6 g 22mm. Radiate head, silver coated. Reverse probably 2 figures holding something between them.