Camera shops usually recommend Bowens. This isn't surprising because Bowens are available for resale, some other makes aren't available to retailers.
A lot of them recommend Interfit. This isn't surprising either, because they make a good profit on Interfit products.
Bowens are in fact a good product, just mentioning the profit motive because it can influence recommendations. Bowens are however expensive for what they are.
Another good make is Lencarta. Very, very similar to Bowens but at a much lower price. Same accessory fitting, again the accessories are much cheaper.
And Elinchrom is the other good make. Again, they're expensive and the accessories are expensive too.
All 3 of these manufacturers produce battery powered studio flash as well as mains, although you get much better value from mains powered units.
There are plenty of cheaper brands available too, but basically you get what you pay for.