my score is 73.89 percentile in jee main 2021 ,my home state is haryana , my jee CRL rank is 246433 and OBC rank is 78831 which engineering colleges is best for me ?

look, you can't get any good government college with this rank so better if you move into the private colleges where you can take direct admission without giving any entrance exam. Soome colleges are like LPU, AMity, Shrda, Chandigarh UNiversity, Galgotias, AKTU, etc.

And if you have some good percentage in your 12th like 90+ then you can choose these good college  with direct admission.

• SASTRA
• Thapar
• JIIT
• KIIT
• SRM
• etc.

You can use this link to predict some good colleges according to your JEE rank.

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Good Luck :)