You should have some idea of price point when you start shopping, then try bows in and around that price point.  You may want to consider trying wood and carbon fiber bows, whether you or your teacher have a bias or not.  There is simply no way to know whether the chemistry exists between you, your cello, and a potential bow until you try it and by ruling something out based on someone else's opinion -- well, it could be your loss.   Bow shopping has a lot to do with perception.  Many times people who think they want a certain weight find out it's more about balance or other features.  Also some bows, by virtue of balance, may be determined by a player to be "the light one" only to find out its empirical weight makes it one of the heavier bows in the array. 

Variations in wood quality, density, grain and craftsmanship can lead to very different performance even by bows in the same price range.  Carbon fiber composites also vary in price and composition, so if you played one carbon fiber bow, it is no indication of what another brand or model may be capable of.  Some sticks will be soft, flexible or stiff.  Some will draw out more sound more easily, may maneuver well for some bow strokes and not others.  You may not have enough hours of play time to feel confident that you know what you're doing.  We can help with that!

Again, there's more to the process but once we talk to you and find out your knowledge base and experience, it will be easier to address your issues in a more meaningful way.