So who fights Floyd next? Brook or Thurman??

Because as far as I'm concerned Khan eliminated himself last night. He struggled with a game Algieri far worse than Pacquaio did. Imo he's trying to perform smokes and mirrors in order to get this Mayweather fight. Trying to fool the public into thinking he can be the one to beat him but he will suffer the same fate as the rest. I had Algeiri winning 4 rounds in that fight with 1 swing round. How many rounds do you think Mayweather will win? Atleast Pacquaio knocked him down 6 times. And don't give me 'Algeiri was a different fighter from the one from the Pacquaio fight', because Imo, you don't improve that much in 6 months. Thurman and Brook look like they could be the goods though. A fight between them to determine the challenger to May would be the most logical solution, but we already know Floyd is only giving his opponent until September, so that can't happen. So which one is it? Also we heard Floyd say he wants his last opponent to be a tough tough guy, a refreshing move from the champion for once, but what does he mean by that? When he says tough, does he mean Golovkin tough? Or does he mean Keith Thurman tough?...I doubt he fights Golovkin...Theres also Lara. So so far the list of considerations for May's next fight should be looking something like this. With 1 being the most likely candidate. Tell me what you think: 1. Kell Brook 2. Keith Thurman 3. Amir Khan 4. Erislandy Lara 5. Danny Garcia 6. Golovkin