Not another newbie

Question please
We are planning a long term rental in Spain, to find our feet.(6/11 months).
Must be coastal area. Prefer large town or city environment, but flexible on location.
1 bedroom min
2 adults non smokers no children (teetotal me)
OCD with tidiness
We also rent our property (UK) through a agent.
And the hard bit, we do not wish to pay to much around £300/£350 per month.

Is it possible?
Danny