The historiography of the Royal Navy is vast and rather daunting. Although the book is a tad long in the tooth, The Oxford Illustrated History of the Royal Navy edited by J. R. Hill is an anthology written by some of the doyens of scholarship on the RN. Both Safeguard of the Sea and Command of the Ocean by N. A. M. Rodger are doorstoppers, but essential for covering the RN from the earliest age to the Napoleonic period. I have no idea if Rodger will complete his third volume (history has its Winds of Winter analogues too!). And if one wants digital learning, the Mariner's Mirror podcast has some good episodes on British maritime history.