As with most things, my experience is that specialist encyclopedias are your best bet for knowledge per effort. There’s nothing as high-quality and legally accessible as the SEP, but the standard other places should have you covered. Depending on the level of detail you’re looking for, Cambridge Companions, Oxford Handbooks, and Very Short Guides tend to be pretty accurate and accessible.
(As for intersectionality I have yet to see a definition which isn’t either trivial or theoretically problematic. Which isn’t to say that realizing and incorporating the trivial form is itself trivial, but I don’t think either version would really hold up as a necessary or sufficient condition for differentiating waves. Waves are noticed based on broad shifts in theory and are thus necessarily fuzzy. But this is just IMO.)
As with most things, my experience is that specialist encyclopedias are your best bet for knowledge per effort. There’s nothing as high-quality and legally accessible as the SEP, but the standard other places should have you covered. Depending on the level of detail you’re looking for, Cambridge Companions, Oxford Handbooks, and Very Short Guides tend to be pretty accurate and accessible.
(As for intersectionality I have yet to see a definition which isn’t either trivial or theoretically problematic. Which isn’t to say that realizing and incorporating the trivial form is itself trivial, but I don’t think either version would really hold up as a necessary or sufficient condition for differentiating waves. Waves are noticed based on broad shifts in theory and are thus necessarily fuzzy. But this is just IMO.)