Always found it kind of cool that the two "good" Bond girls in YOU ONLY LIVE TWICE (Akiko Wakabashyi and Mie Hama) did a fair amount of Kaiju films, including starring together in the original Kong vs Godzilla.
Also watched the first two LUM/URESEI YATSURA films which have a ton of Godzilla visual easter eggs. I think it's in part because Toho was involved.