Refinancing car loan

I have an Honda Accord that I bought in 2024. At the time, I was having ~700 credit score. As a student then, I thought it was a fair score. However, Honda financing people said that I have no credit history (like previously owning a car, home loan, etc.), my interest rate would be a whopping 8.99%. I did not have a choice, and had to take the deal. Ever since, I was very prompt on my payments, bills, etc., and my credit score stands at ~770, and even a decent credit history.

I have been thinking about refinancing to get rid of this huge 8.99%. However, I am new to this, and do not know where to go, whom to talk to. I did come across a post that credit unions are the best bet, but which ones, how do I pick one, what parameters do I have to consider?

Help.