dropped

You can only get 1 bid in the end. Keep that in mind. The number of invites you have mean nothing.
Keep going! I know it’s so beyond overwhelming but Put the negative thoughts out of your mind and remember there are 3 sororities still recruiting you and inviting you back! Give them a chance even your last choice.

it is not about the "tiers" (which are based on superficial bs anyway) it's about where you feel at home and which chapter you feel you will get the most out of. don't listen to this website listen to your heart.

The whole point of why sorority recruitment is structured so you go see multiple sororities every round, even ones you are not “interested” in or whatever is because you may be surprised that you might vibe with some of those girls if you go talk to them. And even if you don’t vibe with the 12 girls you’ve met through recruitment, you might meet some on bud day you vibe with, or bond with your pledge class members, or get your big....and you’ll realize wow I can’t imagine being anywhere else.
Your odds are fine as long as you maximize your options you’ll probably get a bid but it might not be from the 2 or 3 you like right now. So I suggest keeping an open mind for the rest of recruitment irnyoure going to disappoint yourself if it doesn’t go how you envisioned it.

Tiers really don’t matter, it’s al about where you feel the most at home. If you. The best thing to do would be to go through the whole process, and if you’re still not happy with what you have left at the end, there’s always the option to rush again next year (which most people find better anyway).