Hi, so basically if you want to pursue a diploma course after 10th you have alot of opportunities open these days.

One of them is ITI in computer related field.

Diploma in Computer Science Engineering is also a great course in the computer field which can easily be done after your 10th standard, after that you can apply for a good job, and if you want you can take your knowledge to a very high level by doing Engineering in the computer field or any other computer-related course.

Although you can do alot of courses too  from Coursera, Udemy, EDX etc.

Even Stanford University free courses in programming are also available in their website.

You can enhance your knowledge with alot of fields available around you.

I would suggest you to learn and practice your computer science skills by making projects and start applying for jobs.

Remember what ever course you do the job will totally be based on you skills, so work on your skills and be the best.

Hope this is helpful.