Martin's link provides the guaranteed method of making a decent boeuf bourguignon. Quote: "The secret to this super-rich beef casserole is to use all wine and no stock". While I wouldn't necessarily agree that you've got to leave out the stock entirely, you certainly need to be generous with the wine! The best boeuf bourguignon I've ever tasted was in a restaurant in Bordeaux, where I felt like I ought to be drinking it, rather than eating it!
Be wary of the reference to 'cheap red wine' in Martin's link though. That shouldn't be taken as meaning that you could get away with buying the dreaded 'British wine' that, for example, Asda sell under the 'Three Mills' brand name. As many a TV chef has said, "If it's not good enough to drink, then it's not good enough to cook with!" Look for a house claret for economy but authenticity.
The Hairy Bikers' recipe gets 5 star reviews too:
https://www.bbc.co.uk/food/recipes/boeuf_bourguignon_25475