I'd look to freelance yourself out to London agencies on the proviso that the majority of work is to be done remotely and that you'll be around for kick off meetings etc. Once they trust you you'll be able to switch this to pretty much 100% remote (possibly look to reduce your rate as a sweetener) and then just go to cheap SE asian country of your choice, doing visa runs every X months.
There is a large culture difference between different countries and you may as well spend some time in each to see how they fit before looking for a full time position
There is a large culture difference between different countries and you may as well spend some time in each to see how they fit before looking for a full time position