Entry level career advice

I have just completed my MSc in Int Dev with a focus on migration and displacement, and I have a BA in Politics & Philosophy. I know I want to work in the Int Dev field as my career but so stuck on how to start/ where to go! Can anyone advise on some of the best entry ways into the sector for people with Masters degrees

I live in England and have been working in hospitality management positions for around 3 years (whilst completing my degrees)