Check this list -https://guides.lib.wayne.edu/choosingajournal/casereports

the mentioned APCs might have tiers according to the world bank rank of GDP. So Sri Lanka might get waivers.

Examples:

Hindawi Journals - Full wavier of APC for SL

Clinical case reports - Wiley https://onlinelibrary.wiley.com/journal/20500904

Case reports in neurological medicine(Hindawi) - https://www.hindawi.com/journals/crinm/

Case reports in Paediatrics (Hindawi) -https://www.hindawi.com/journals/cripe/

check this https://www.cureus.com/

Try and see if Sexual & Reproductive Healthcare can publish.

Just copy and paste your title or abstract here: https://jane.biosemantics.org/

Elsevier JournalFinder

case reports in medicine journal

https://www.hindawi.com/journals/crim/

Iroshani Kodikara

Alraedy submitted to a Hindawi journal and Surgical Neurology International.

One is already published. Other soon to be published.

Thank you ma'am...