There are some scholarships out there (google HCAP). But not for the full whack I believe, unless you're female (google Easyjet scholarship).
Aer Lingus paid the full cost of training up front for those who started in January, they will be doing the same for those who start in January 2017. Long odds though, about 300/1.
West Atlantic pay for everything post-PPL though you'll have to work hard for it.
Virgin guarantee the loan, BA did guarantee the loan for the FPP, whether this will be the case when BA re-opens at some point I don't know.
Easyjet have made noises about guaranteeing the loan "for exceptional candidates" however they haven't defined "exceptional" nor stated how many loan guarantees they are offering.