I would be interested in seeing some routes from Northern Ireland. A few helpful details about it: It's operated by Northern Ireland Railways (under the umbrella of Translink) It uses CAF Class 3000 & 4000 DMUs, as well as NIR Class 111 Locos for engineering works and Class 201 Locos with De Deitrich stock for the Dublin to Belfast Enterprise service, operated jointly with Irish Rail. Typical routes include Newry to Bangor (all stops and express), Belfast to Derry, Belfast to Coleraine, Coleraine to Portrush, Belfast to Larne Harbour GM Class 201 CAF Class 3000 CAF Class 4000
There's also some route videos provided by Translink on their YouTube Channel Belfast to Portadown (part of the route to Dublin) https://youtu.be/mgA-QOw8pZM Belfast to Larne Harbour Belfast to Bangor Belfast to Cullybackey (one stop before Coleraine) Coleraine to Portrush Coleraine to Derry This one cool because it crosses the only moving river bridge on the network
