A Wellington Mk III would be a nice addition for early war European settings. It carries a useful warload, has defense that has a chance against things like the Bf109E and Bf110C, was renown for being touch and, most importantly, is slow enough for the aforementioned German fighters to actually catch it, unlike the Boston Mk III.
Wellinton B.Mk III:
~250mph
eight .303s, two in the nose, one in each beam and four in the tail.
4,500lb bomb load.