I noticed this for a while, but I can’t name any kanji that has a kun’yomi that starts with a voiced consonant (g, z, j, d, b) I don’t mean a kanji that has a voiced consonant, but starts with one.
Also 狡(ずる)い, even though the kanji isn’t too common.
柄（がら）
爺（じじい）
狡い（ずるい）
婆（ばばあ）
豚（ぶた）
It’s rare. According to the [Tofugu article on rendaku](https://www.tofugu.com/japanese/rendaku/), words native to Japan (the source of kunyomi readings) almost never start with a voiced consonant. Words native to China do, which is one reason onyomi-based words often don’t rendaku; changing the voicing is more likely to change the whole meaning.
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出
出る does, otherwise yeah, I don’t think there’s a lot, although many do become voiced through combination with other terms.
側 for one. If I’m not mistaken, one of the kanji reforms made it so that the official standard reading to be taught was がわ and not かわ.
[Source](https://ja.m.wikipedia.org/wiki/%E5%B8%B8%E7%94%A8%E6%BC%A2%E5%AD%97), under 2010年の改定.
Also 狡(ずる)い, even though the kanji isn’t too common.
柄（がら）
爺（じじい）
狡い（ずるい）
婆（ばばあ）
豚（ぶた）
It’s rare. According to the [Tofugu article on rendaku](https://www.tofugu.com/japanese/rendaku/), words native to Japan (the source of kunyomi readings) almost never start with a voiced consonant. Words native to China do, which is one reason onyomi-based words often don’t rendaku; changing the voicing is more likely to change the whole meaning.