The best place for flight training is where YOU feel most comfortable.
Most recognised? Every school produces pilots with the same licence, which has been examined to the same standard. So, depite what some school's marketing people will tell you, it shouldn't make any difference which school you go to, be it modular or integrated. Some schools *may* have connections with airlines.
Do some background research, narrow down which schools you think offer what you are looking for, do a search on here, then go and visit the schools personally.
Sponsorships are few and far between. Try Atlantic Airlines at Coventry, they have the Fuglie scheme which requires you to have a PPL and a Class 1 medical.
If you havent already done so, take some PPL lessons and make sure you like flying. Also get your Class 1 medical as soon as is practically possible.
For finance, do a search for HSBC on PPRuNe. Expect to budget between ₤45,000 and ₤60,000 for a modular course or ₤65,000 to ₤80,000 for an Integrated course.
Dont forget to add ₤25,000 for a type rating as well.