Depends if you want an alternate front-end and you can self-host, or you're looking for a third party.
For the former, I generally look at what LibRedirect has as options: https://libredirect.manerakai.com/
Proxigram seems unmaintained, but kittygram seems to be actively developed: https://codeberg.org/irelephant/kittygram
Something to use with a normal web browser that requires no login would be nice. Like Libreddit or Nitter.
Well the description for Kittygram is: "Kittygram is an anonymous, privacy-friendly, lightweight, and open-source Instagram frontend inspired by Nitter."
I've never had an Instagram account, and I'm trying to keep it that way.
Most of these front ends need to be stocked with login cookies, that's how they bypass the login wall. If you want to self host a bypass you need to create at least one dummy account on that service.