This is quite fun, if you like that sort of thing:
Biden may be ahead in the polls, but key battlegrounds that the Democrats lost unexpectedly in 2016 could come through again for Trump. Use our simulator to build your own election result map
www.theguardian.com
It lets you call the seats that could potentially go either way and shows you how that translates into electoral college votes.
I have Biden winning 294-244, by flipping Michigan, Wisconsin, Pennsylvania and North Carolina (and Nebraska 2nd District).
Arizona, Georgia, Texas, Florida, Iowa and Ohio (and Maine 2nd District) remain Republican.