If you want a 650cc bike that can be used daily, the models at the forefront are the Royal Enfield Interceptor 650 and BSA Gold Star 650. Both have torquey engines – albeit ones that sound and behave very differently – with upright ergonomics making them a good fit for daily usage. Do bear in mind that both bikes are much heavier than your current Honda CB350 H’ness and will demand some caution before you get used to their size and heft.
If you want something a little more unique, then the Kawasaki Z650 or Z650RS makes for genuinely usable big bikes. While their prices are more than double those of the Royal Enfield and BSA, they really are hassle-free, punchy, well-built machines that will serve you well for a long time.
One thing to note with the Kawasaki 650s is that they have low ground clearance, which could be a factor that influences your purchase if your city doesn’t have good roads.