I Need Datasets For Machine Translation Project And If I Can’t Find A Dataset Of The Equivalent Translation I Need, How Can I Make One ?

this is my first real project and I need to work on , the equivalent i seek isn’t popular, because it’s between two dialects of the same language

so my bits that i won’t be able to find a dataset for my project so my question is on how to make a translation dataset to train my translation model

if any can proved help through material, tutorials, or if they been through the same problem i will be thankful