I would recommend the following excellent and highly recommended books in order of detail and information (all from Helion):
The Colonial Ironsides- English Expeditions under the Commonwealth and Protectorate 1650-1660 by Jonathan Riley
"Better Begging Than Fighting" - The Royalist Army in Exile in the War against Cromwell 1656-1660 by John Barratt.
There was also an article on the battle by Simon MacDowall in Wargames Illustrated no. 359 September 2017.
Spain and her allies, The Dunes (Dunkirk) 1658:
There were 3 Fronde Rebel regiments - Condé Regiment in 2 battalions, Regiment Clommes and Regiment Persan.
For Colours I can find the following:
Condé and Persan
The Drapeau Blanc is the company Colonel's colour.
Further reading for the campaign I would recommend Cromwell Et Mazarin: Deux Campagnes De Turenne En Flandre by Jules Bourelly
and
The Grand Condé in exile by Inglis-jones attached pdf (freely available via Oxford Uni)
https://ora.ox.ac.uk/objects/uuid:3ab667bf-f5af-45b7-985f-1d936f8299a4 .
I hope this helps.