I think 'o' in torch is better.

the first "to" (sic!) is like "to" in "Tokyo" (sic!) when said in Japanese. That is, it is a loooong "o". Not like in "top" or "tone". Maybe more like in "law". In other words, the English "tofu" is pronounced "wrong".

It depends how accurate/pretentious you want to be. Tofu is a really well-known "Japanese" word so in English it has taken on the phonetic characteristics of our language. It's "to" as in "toe", and "foo" instead of a Japanese "u" sound. If you want to get really technical, the word is originally Chinese so you could start pronouncing it "dòufǔ" if you want. Overall, given how well-known it is, I would probably just go with the standard English-language pronunciation: "toefoo"

Thank you, Haru. That's really useful.

Hi, Su.Ki! If you would like to listen to it, here are some recordings: https://ja.forvo.com/word/%E8%B1%86%E8%85%90/#ja