Best Summer Research programs?

I am looking for intense, biology and chemistry related summer programs (high school premed), specifically the top in the country. Based on experiences, what would you say would be the best to apply to? I plan to apply for RSI, SIMR, and Simon’s Summer program thus far.

It depends on which grade you are in.
Admissions for all these are over for this year. Moreover, these are available only to Juniors.

Yes, I am aware, but I’m kind of trying to plan ahead. For when that time comes, what would you suggest?
Thanks

Same stuff as for college admissions, good grades, better recommendations, essays from the heart and importantly, prior research experience and some awards, and bit of luck.

In addition to research summer programs, you should also try reaching out to local professors to see if they have any internship opportunities