I can give you rough IDs, but I'll have to leave it to the specialists to give you more precise attributions. Clockwise from top left:
#1: I think it's Emperor Gratian (but it could be another emperor of siumilar time period; the name's not too clear), Thessalonica mint, reverse type GLORIA ROMANORVM, emperor marching right holding labarum (military standard with chi-ro symbol on it), looking back at a captive he is dragging by his hair behind him. Not entirely unlike
this one.
#2: Emperor Constantius II I believe, Alexandria mint, reverse type VOT XX MVLT XXX in wreath.
Similar example.
#3: Constantine the Great, posthumous memorial "veiled head" type, reverse type veiled Constantine standing, VN MR to either side. I can't tell the mintmark, but it's similar to
this one.
#4: Another Constantius II, unfortunately the mintmark is worn away, but it's a VICTORIAE DD AVGG Q NN type, two Victories holding two wreaths over a palm branch.
Like this one.
#5: similar to #3, except reverse type is Constantine in chariot, with the Hand of God reaching down to him. I can't tell the mint on this one, either.
An excellent example.
#6: Similar reverse to #4, except this time it's Emperor Constans, and clearly Thessalonica mint.
Almost an exact match.
#7: Probably the easiest of the lot: Emperor Constantius II, Siscia mint, reverse type FEL TEMP REPARATIO, soldier spearing horseman.
Yours is much nicer than this one.
By my count, that's seven coins.

Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis