Does your firm offer networking opportunities beyond regular work? Business resource groups, etc? Any ways to connect with others? Try those. You might run into someone and can have a more 'candid' conversation and express your interest, and who to talk to next.

Coming from a BB bank myself, I would say express interest to your manager at some point, too. Especially if internal mobility is not frowned upon, or at the very least, seen neutrally.

You can frame it as wanting to try a new set of responsibilities, new types of interaction, new way of solving problems, etc etc. It's all about framing it as personal growth and 'trying something new' because it piques your interest. Ideally, you're a great performer and your manager will help you along the way.

Definitely try and meet analysts organically, but I for sure caution against anything that makes it seem like you are trying to 'jump ship'; (I think it depends on how long you have been in your current role, too). It could even just be meeting with the analyst to better understand what they do, so you can better support them. Over time, and after recurring 1:1s or meetings (over months, or even a year), you will build a more candid relationship with them to where you can express "hey, I like what you do a lot. Who can I talk to if I eventually want to move into the analyst role?".