Hi Khushi,

There are various career option which one can go for after completion of 12th class. However, the choice of career may depend on your 12th stream and where your interest lies. Since you have not mentioned both the factors I cannot suggest you the best option for you. However, You can look for following link to know various career opportunities after 12th:

https://school.careers360.com/articles/career-options-after-12th

Good Luck