Should Hol jó üzleteket találok be accepted?
In general, verbs come immediately after the question word. The two exceptions are miért (why?) & hogyhogy (how come?).
No - in such questions, the verb should come after the question word, i.e. Hol találok... ? or perhaps ... hol találok?
i wrote "boltokat" instead of "üzletek" i think my version is correct as well
You're right.
What would "Hol találom jó üzleteket" mean?
it would mean nothing, since it is incorrect