It might be difficult to guarantee CSE/IT at VJTI or COEP with a percentile of 98.35 MHT CET for the open category, but there is a chance, especially considering you are OBC-NCL.
You can consider the following:

Cutoff Trends:

• Previous year cutoffs for VJTI and COEP CSE/IT were very high, exceeding 99.5 percentile for the general category.
• OBC-NCL reservation offers some advantage, lowering the cutoff slightly.

Your Percentile:

• Your 98.35 percentile is competitive, but might not be enough for the most coveted branches  in these colleges based on general trends.
  
  You can also:
  Monitor Counselling Rounds: The counselling process for MHT CET is currently ongoing (as of July 23rd, 2024). Cutoffs might reduce slightly in subsequent rounds as seats open up.
  Consider Other Branches: VJTI and COEP offer many other excellent engineering branches besides CSE/IT. You might have a better chance with these branches based on your percentile.
  Other Reputed Institutes: There are other reputed institutes in Maharashtra with good engineering programs. Explore institutes like PICT, MIT Pune, or some of the newer IITs with your score.
  
  I cannot provide a definitive answer on your chances at VJTI or COEP CSE/IT, but I hope this information helps you make informed decisions during the counselling process.
  
  I hope this information helps.

The top engineering colleges through MH CET are College of Engineering, Pune (COEP), Pune Institute of Computer Technology (PICT), Maharashtra Institute of Technology (MIT), Pune, Vishwakarma Institute of Technology (VIT), Cummins College of Engineering for Women, International Institute of Information Technology (IIIT), Pune in which cutoff is around 92 percentile.

You have a very bright chance to get into vjti and coep in both streams it and cse before choosing any college research each college's reputation, faculty, infrastructure, placement record, and other relevant factors to make an informed decision about which college to choose for your future studies. All the best