This page offers mint rarity estimates of Eudes deniers, based on the number of known coins from each mint cited in Georges Depeyrot's Le Numeraire Carolingien, Paris 1993. This looks at known holdings by major museums and known collections. These numbers do not suggest the total number of coins in each category,just those catalogued in the collections reviewed. Hence, this is a suggestion of relative rather than absolute scarcity. Depeyrot generally cites higher numbers of coins than Morrison and Grundal, by mint, so his numbers are used. MG note a coin from Corbie I can't match to Depeyrot. Depeyrot (p 75) offers a good discussion of denier production during the Carolingian era.

The ‘most common' column reflects numbers of the  most common type, whereas the ‘total' column reflects the most common and other, less common deniers from that mint. The rank order is by the second column, total number of coins by mint, regardless of type (if applicable).

I'd be interested if anyone seeing this has a better way of judging relative rarity.

Mint            Depeyrot Depeyrot
                  most     total
                  common
Carcassone         2128     2128
Limoges            1122     1122
Toulouse            326      327
Angers              188      188
Tours               165      165
Blois                91       91
Orleans              90       90
Soisons              26       26
Arras                25       25
St. Denis            23       23
Palace               21       21
Chateaudun            6        9
Reims                 9        9
Chartres              7        7
Bourges               6        6
Paris                 2        5
Chalon sur Saone      3        3
Chateau Landon        2        2
Compiegne (Oise)      2        2
Peronne               2        2
Corbie                2        2
St Quentin            2        2
Amiens                1        1
Courgeon              1        1
Laon                  1        1
Noyon (Oise)          1        1
Sens                  1        1
Valenciennes          1        1