Based on my experiences, Hiawatha in general, but depending on the game, Augustus and Oda will spam cities like there's no tomorrow. In my most recent game where I was playing as the Byzantines because I don't like fun, he was plopping down cities literally surrounded by snow, with the closest resources being in the third ring of said city... within my borders already. I didn't mind for a bit because it helped me maintain religious pressure and I had snagged Tithe, but it got extremely annoying to just see useless city after city pop up. I was glad to raze them. Oda was doing the same thing on his continent, settling even one-tile islands with just one fish resource (Admittedly, he got an isolated start with only five city spots.)
The thing about the list above, with the Expansionism bias, is that the warmongers react slightly differently. Shaka loves having a lot of cities, but he prefers to take them from others as opposed to founding them. Oda is more about founding a bunch of new ones, but he also likes taking them from others.
Hiawatha stands out because, as his bias suggests, he is the second-most-spam focused Civ in the game and his peaceful bias means that he will place cities everywhere he can reach. It works out fantastic for the Deity AI, which is barely punished at all and hugely rewarded for going wide, which is why he's so commonly a powerhouse if he gets past the middle ages.
Ashurbanipal will spam cities early but then slow down a bit from what I've seen. Casimir is bizarre. I've seen him be almost as bad as Hiawatha, and I've seen him with only four (admittedly monstrously well developed) cities in the Industrial era. Something about his AI makes him very responsive to all kinds of factors I guess. Dido is infuriatingly stupid about her spam, seeing to for some reason AVOID coastal spots in all my games. Kamehameha is pretty spammy, but not ridiculously so, except he will try to snag juicy coastal spots from you.
Images in link.
