The OPC Scheme has been running in a few areas for a while. It provides a way of giving folk a point of contact via the internet/email to request look-ups of baptisms, marriages, burials etc in specific parishes in the UK.
The OPC’s may not reside in the places you need help on but they can usually offer a good first point of contact for the records of that parish - or point you in the right direction if they cannot assist you themselves. They are not employees of the parish nor aligned to the parish councils, merely family historian volunteers willing to disseminate information of any available records in that parish.
Don’t forget this is a free service, offered by volunteers, who all have “other jobs” and commitments, so please be patient with your enquiries! A direct enquiry to the local church, family history society or records office is an obvious way of obtaining assistance, also.