North West Uk Specific Question

Ok all this is for north west uk riders advice
I've pretty much always used the dealership I've bought my bikes from for tyre replacement,and it's pretty much £25-30 a tyre less tyre price,these supercorsa's are gonna be toast by time I go Spain so will be changing them,my dealership says they don't do an awful lot of tyres as they have to use a tech n obviously charge full labour ££ for changing tyres,so who are you all using or are you using dealership? Speed triple if it makes a difference? All input welcome it's just that I living in north west I need local knowledge
Thanks