Salesforce offers 6 certifications to certify Salesforce Developers and they are:
B2C Commerce Developer, JavaScript Developer-I, Marketing Cloud Developer, Platform App Builder, Platform Developer-I, and Platform Developer-II.
If you want to become a Salesforce certified developer, then I recommend you to join the Salesforce developer certification from Intellipaat whose course is designed by industry experts.
Meanwhile, join the Salesforce community, and keep in touch with the latest developments, join their newsletters, download study resources, exam guide, and practice questions to prep yourself to ace the exam.
I suggest you take a look at our Blog article on Salesforce developer and also our YouTube tutorial video on Salesforce training to help you get started.