I have been maintaining my own metalist of directories where one can submit their indie/personal websites to. In alphabetical order, here is what it looks like right now:

https://blogroll.org/

https://blogs.hn/ (by @surprisetalk)

https://hnpwd.github.io/ (I am one of the maintainers)

https://iii.social/ (by @freshman_dev)

https://indieblog.page/ (by @splitbrain)

https://kagi.com/smallweb/ (by @freediver)

https://marginalia-search.com/ (by @marginalia_nu)

https://minifeed.net/ (by @freetonik)

https://susam.net/wander/ (I developed this)

https://text.blogosphere.app/ (by @ramkarthikk)

https://wiby.me/

A clarification: The Wander link above (which I developed) is not something where you list your website. It is a tool you host on your website to become part of a decentralised network of personal websites (much like in a webring, except that the network is shaped like a graph rather than a ring): https://susam.codeberg.page/wcn/. More details here: https://codeberg.org/susam/wander