Here is a small selection of titles from my undergrad early medieval bibliography:
Abels, Richard P., Lordship and Military Obligation in Anglo-Saxon England (London, 1988).
Campbell, James, Essays in Anglo-Saxon History (London, 1986).
Dark, Kenneth R., Civitas to Kingdom: Power and Politics in Britain, A.D. 300-800 (Leicester, 1993).
Ellis, Peter Berresford, Celt and Saxon: the Struggle for Britain A.D. 410-937 (London, 1993)
Finberg, H.P.R., The Formation of England, 550-1042 (London, 1974).
Fisher, D.J.V., The Anglo-Saxon Age, c.400-1042 (London, 1973).
Harrison, Kenneth, The Framework of Anglo-Saxon History to A.D. 900 (Cambridge, 1976).
Harrison, Mark and Gerry Embleton, Saxon Thegn, 443-1066 A.D. (London, 1993).
Hart, Cyril, The Danelaw (London, 1992).
Hawkes, Sonia Chadwick, ed., Weapons and Warfare in Anglo-Saxon England (Oxford, 1989).
Higham, N.J., The Convert Kings: Power and Religious Affiliation in Early Anglo-Saxon England (Manchester, 1997).
Hodgkin, R.H., History of the Anglo-Saxons, third edition (Oxford, 1952).
Humble, Richard, The Saxon Kings (London, 1980).
John, Eric, Reassessing Anglo-Saxon England (Manchester, 1996).
Loyn, Henry R., The Governance of Anglo-Saxon England, 500-1087 (London, 1984).
Loyn, H.R., Anglo-Saxon England and the Norman Conquest, second edition (London, 1991).
Nicolle, David, Arthur and the Anglo-Saxon Wars: Anglo-Celtic Warfare, A.D. 410-1066 (London, 1984).
Niles, John D. and Mark Amodio, ed., Anglo-Scandinavian England: Norse-English Relations in the Period before the Conquest (London, 1989).
Page, R.I., Life in Anglo-Saxon England (London, 1970).
Peddie, John and Patrick Dillon, Alfred's Defeat of the Vikings (Devizes, 1981) Reprinted (London, 1994).
Sawyer, P.H., From Roman Britain to Norman England (London, 1978).
Sawyer, Peter, Scandinavians and the English in the Viking Age (Cambridge, 1995).
Wallace-Hadrill, J.M., Early Germanic Kingship in England and on the Continent (Oxford, 1971).
Whitelock, Dorothy, The Beginnings of English Society, second edition (Harmondsworth, 1974).
Yorke, Barbara, Kings and Kingdoms of Early Anglo-Saxon England (London, 1990).
There is much more, not all read by me of course *eek*, though I sampled many for various essays. For most of these you would need access to a very good library as they would be too expensive to purchase.
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