Interesting Japanese websites featuring miscellaneous .
https://kangaeruhito.jp/ — random web mag
https://zatsuneta.com/ — a super interesting page (in my opinion) with articles on random interest, origin of words, place names, and other etymology – in other words stuff that nerds, geeks, and old people find interesting.
— one of the best sections is origin of different kanji for fish. https://zatsuneta.com/category/origin_fish.html The ancient Chinese categorized fish in detail.
(Interestingly the Japanese in some cases misunderstood the fish that was meant. Ex: sturgeon)