What instrument would be good for me?

Bari Sax and Tenor Sax will be the easiest for you to transition to, you will just have to learn Base Clef to play Bari Sax. Boon and Oboe are both double reed instruments, similar to single but much harder to perfect. They will both take a while to be comfortable playing but both have beautiful sounds once you know what you are doing (they sound like strangled cats until you do) Good players are hard to find on those instruments, so if you are good you will be in demand if you choose to pursue them. If you already play Piano and you would like to get more experience, maybe that is a good course, but Piano is always a good instrument to have in your bag of tricks as a musician and it is easy to learn on your own as well so you do not have to play in an ensemble to get good at it. French Horn is also a tricky instrument to learn and become good at but its sound if very beautiful as well. If you have never played a br instrument I would recommend starting out on a simpler one and moving up to French horn. Base Guitar is completely different than all the other instruments you have listed it will be a fun step if you choose to go that way.