In rabbits, individual personalities are not tied to the breed so I would just try to find the rabbit you like the most! If you adopt from a shelter, you can get an adult rabbit with developed personality (I’m told it is hard to tell with babies), plus they will most likely already be spayed/neutered so it will save you vet fees!
There are a few things to consider with breeds, size obviously can be a factor. Although small rabbits also need large play areas to run and jump, just because they are small doesn’t mean they only need a small cage. Small rabbits tend to be more active than large ones, but again this is a generalization and you will find lazy dwarfs and active giants
Other things to think about are health issues associated with breeds: rexes are known to suffer from a few conditions such as sore hocks (fur on their back feet rubs off easily) and curly nails. Lops can be prone to ear infections, netherland dwarfs can have tooth issues… Its not a guarantee that these will be a problem it is just good to keep in mind when you adopt! For instance, a mini rex would need lots of soft surfaces like fleece in the habitat to protect their feet.
Most important thing is that it is healthy and you love it <3