I love Kagi, I am a paid user since day 1, but SmallWeb is a collection of English-speaking tech blogs, it cannot even begin to compete in diversity with the GeoCities era of the web. (to be fair: I've had Kagi employees telling me their dataset is growing larger and more diverse every day, so worth keeping an eye on it)
Sometimes I use Marginalia's "Vintage Web" search for niche topics; most results are dead blogs and old .edu personal websites that someone forgot to delete, still a vanishing minority of anything one could find in 2001.