As a heads up for people in Ireland, HSE has updated this year COVID-19 vaccination guidance to state that every adult who want a vaccination can get one. (This has as far as I know not been the case in recent years.)
HSE also has a list of pharmacy's where you can get a vaccine: https://www2.hse.ie/services/find-a-vaccine/
Source: https://www2.hse.ie/screening-and-vaccinations/covid-19-vaccine/get-the-vaccine/weak-immune-system/