I successfully read one recently! I was watching sumo, and they show the wrestlers names first in kanji, than add the romaji later, and I saw that trident looking one at the end of a name and I thought -i know that one, that’s mountain, so could be -yama, or maybe -zan, at the end of the guy’s name, and tried to guess who was coming out next. Turned out it was Kinbozan, so i was right, but also meh.