Parking in Towns, is there an easy way?

We are new to MH ing and plan to go off and travel around, but are a bit worried about not finding anywhere to park in Towns with a 6m length MH. We have noticed that some P&Rs have height barriers and some CPs also. In a strange Town it seems quite bewildering and puts us off. Are there any tips for MH owners to follow, or a list of MH friendly CPs in Towns that we could look up before we arrive in an area/town please? We know if we do get into a CP and have to take up 2 bays we have to pay for 2. Help please