For the purpose of disambiguation between the three, I would want to remember the key components well. WaniKani might not pick out the most ideal Radicals, as well as point out related Kanji that well, so Semantic-Phonetic script is recommended. (Otherwise, searching in Wiktionary.org may help.)
Handwriting may help, but I think ability to write from memory is the most important part, so after that the Kanji may be recalled without moving a hand nor thinking of an English word. Stroke orders may be remembered, but that’s just a part of the process.
- To continue (続く) to sell (売る)
- Binding (結び) in marriage (結婚) is auspicious (吉), and said to be crammed together (詰まる).
- Being entangled (絡む) by a (long) kiss. Hmm I don’t remember this radical and related Kanji well, and I hate the Radical naming, but it’s Each Kanji (各 / 各々).
About Kanji reading, I would remember that resulting vocabularies.
- 連続
- 結局、結婚の結論
- 連絡しなきゃ。短絡的な籠絡