There isn’t such a sign. You choose something, pray Istikhara and then go ahead with it as there is nothing to indicate a sign or a dream as a result of your Istikhara.
And Allah knows best

I prayed istikhara for something last night and overslpet for salatul fajr, I very rarely miss salatul fajr alhamdullilah, if you were in my position would you class this as a sign to ward me against the thing I prayed istikhara for?

Prayer |