Hi Golden99!
Lots of good stuff here: top business schools will definitely be attracted to your awesome GPA and the diversity-component of your LGBT profile. Given your demographic, however, I'd love to see a stronger GMAT - your quant is super, but the verbal should be a bit higher. Much as you don't want to do this again, 730 and above would make you significantly more competitive for the schools you're attracted to (but you knew that...)
International focus is great! Leadership is hard for me to identify, but it looks like you have material to draw on there.

Now, how many schools to handle? Depending on whether you're doing Early Decision, I'd say four or five in the first round, and save a couple for Round 2. Which four? Pick a couple of reach, and at least one safe school. With a 710 GMAT, for example, a safe school would be one where the average/median incoming class GMAT is at or below 710, and the acceptance rate is above 20%.

Post-MBA goals are important, but that's something we would discuss in a private meeting; too complicated for this public forum. Top MBA programs do ask you to pick a lane, at least for the purposes of your research and application, and that lane should have some ties, however tangential, with what you've done before. If you haven't had experience in tech or edtech, for example, you might be at a competitive disadvantage in the hiring market. But you might find a career path that builds on your IB experience while moving you in the direction you hope to go longer-term. It's important to use research and outreach to build out that path in depth, based on what other alumni have been doing.

Campus visits/getting to know people: this stuff is important. I don't know how you'd feel about this, but I can envision you applying in Round 2 instead of Round 1, and using the fall to visit campuses when classes are in session to get to know some students. It's a lot harder at this stage in the semester, when everyone is preoccupied with finals and summer internships. That would also give you more time to retake the GMAT (hint, hint...)

If you choose to do Round 1, pick schools whose essays are less dependent on research, such as HBS, and use the fall to do networking/outreach for your second round schools. It's perfectly valid to cold-email school clubs, but it will be necessary for you to really nail down your post-MBA industry so that you outreach to the RIGHT clubs. See what I mean?

Given the complexity of your questions and your high success potential, I think you could really benefit from a one-on-one with one of our experts. You can register for a free consultation here: https://www.stacyblackman.com/contact/

Good luck!
Margaret Strother