how to make apis faster when lots of people are reading stuff prob depends on how youre set up but think caching and

So, I've been trying to figure out how to make an API faster, you know, the kind that gets way more reads than writes. It's started to get a little slow. I've looked into things like caching, making my database queries better, and using read replicas. What's worked best for you in this situation? Anything I should watch out for when tweaking an API that's mostly just read requests?