Citi, BBH, JPM, FT Partners

If you want to do IB full time, and are interested in the fin tech space, then FT Partners is a great bet. Obviously, there is no guarantee you'll get a FT offer, but the odds are far higher than having to apply for FT, AND you can decide if IB is really what you want to do (which is very important IMO). In addition, FT Partners is a respected shop with some great senior bankers - I would imagine you would get some great exposure (just look @ their backgrounds and trx they have worked on).

That being said, I don't think BBH PE is a bad option if you're not 100% committed to the Fin Tech space. However, you'll have to go through recruiting for FT (if you're set on IB), which has become increasingly difficult in recent years, especially if you're gunning for a BB/EB.

My 2 cents would be FT, BBH, Citi in that order. Sure Citi is a BB, but if you want to do IB for FT than doing a SA stint in ER seems pointless when you have 2 offers from fields that will translate far better. Also, if you do a SA stint at FT Partners, receive an offer, and then decide FinTech isn't the vertical that you want to focus on, you will have an easier time recruiting for FT roles at BBs and EBs, given your SA experience at a respected shop