The whole thing is a disaster.
I went flying school - citation - 146 -757-787.
I was lucky, that sort of progression is hard to find.
Networking, got me, nowhere at all. I don't believe it's much use. Do airline HR people hang out in pubs waiting for desperate pilots to come chat them up.
I think the UK situation fell apart, when a lot of the small TP operators disappeared and conversely the larger charter firms amalgamated or changed their policies on giving 3 yr bonds to new guys.
I wish you luck in your search.