Blood fish & bone, chicken pooh or both and combination crops

Hi all after a couple of years sucsesfully  ( semi sucseful ) growing in containers I have finally moved to a house with a large border in the back garden.

Which is best to use to enrich the soil as I'm not lucky enough to have my own compost, Blood fish & bone or chicken pellets or can I use both ?

My next question is would it be ok to grow my cucumbers courgette and peppers between my sweetcorn , I have 16 sweetcorn plants but only one each of the others, I did look at doing 3 sisters but have decided against it and am doing the runner beans on thier own can I plant my tomatoes next to these.

Many thanks

BFB and chicken manure are fertilizers and will help with plant growth but you really need to be adding compost/manure to the soil to improve it structure, especially if it hasn't been much cultivated in the past. If it's only a smallish area you can buy bagged manure from B+Q or garden centres and don't worry if you can't get things perfect the first year.