As others are saying, with your qualifications any Reach is “reasonable”, but that doesn’t mean you are guaranteed to get into one.
Personally, I would suggest you have far too many Reaches, and I don’t particularly understand why that list. You listed 10, and said there were more, and they cover a range of small independent colleges, mid-size private universities, and large public universities. Some of those I would consider broadly similar to Brown, others a lot less so, so off hand I don’t see any particular reason why you chose that particular list.
So I think you might benefit from some reflection on what you really want in a college experience, and then a more tailored list based on the colleges best for that sort of experience while also being particularly good for your current academic interests.
Like, people I know with your sorts of interests who like Brown might well also apply to Yale and Amherst, but then they tend to start looking at non-Northeast reach universities like Emory, Vanderbilt, WUSTL, maybe Rice, and so on. These are strong in Bio/Neuro, but have an overall experience sort of along the lines of a Brown or Yale.
For other independent colleges, definitely Vassar, and maybe Wellesley if you are interested in a women’s college, Wesleyan if you are interested in the behavioral side of Neuroscience and/or molecular Biochem, and so on.
If you think this way when choosing colleges for your list, you will then be able to explain all that in essays and interviews and such, maximizing your chances of actually being admitted to one or more of your Reaches. And of those Reaches actually being great options for you.
The other thing is you say you have “safeties”, which is fine, but what about Targets? These are colleges that are more selective than what can count as a “safety” or what I would call a Likely, but are less selective than the sorts of Reaches you named. For high numbers kids, these can provide one or more great options in case none of the Reaches work out, and sometimes they actually end up being the choice of the kid even if they do get into some Reaches.
Like, in our feederish HS, people with your sorts of credentials and your interests would typically be looking at universities like Rochester, Case Western, and William & Mary. Savvy pre-med kids will often pick universities like this even if they could get into a higher ranked college because they can hit the sweet spot in terms of at least somewhat lower costs (sometimes thanks to merit, or just being less expensive in the case of William & Mary), more accessible research opportunities, and so on.