Hi Jeroen, We are so glad you joined us!
You might try: https://familysearch.org/learn/wiki/en/Suriname and http://freepages.genealogy.rootsweb.ancestry.com/~genealogylinks/fgn/frgn_S.html
For Barbados: http://freepages.genealogy.rootsweb.ancestry.com/~genealogylinks/fgn/frgn_B.html and https://familysearch.org/learn/wiki/en/Barbados_Archives_and_Libraries Good luck with your search!