would be good, would be fine
君が来たのだから、始めた方がよかろう。
Since you're here, we'd better get started.
彼なしで始めてもよかろう。
We can start without him.
それもよかろう
That would be fine too.
— Sanjuro (1962)
師匠達への約束を果たしてから戦でも何でもやればよかろう
You can go off to war or do whatever you like after you've kept your promise to your masters.
— もののけ姫 (1997)
よかろう
Very well.
— レミーのおいしいレストラン (2007)
ここで待つより家に帰った方がよかろう。
We might as well go home rather than wait here.
行けばよかろう
You might as well go.
— ストーカー (1979)
しかしみんなももう帰ってよかろう。
But I suppose everyone can head home now.
お前たちにも内緒にしてきたんだがもう話してもよかろう
I've kept it secret from you all too, but I suppose I can tell you now.
— High and Low (1963)