I'm not sure if this is of interest to you, but I like org-cliplink to insert links with their
titles. Maybe you can look at their source to build your own if it doesn't work for you?

On Sun, 2020-06-28 at 13:43 -0700, Ag Ibragimov wrote:
> I want to make something like this:
> 
> Whenever I I use org-insert-link and it turns out to be a URI that starts with "https://github.com
> " I would like it to be processed differently than any other link, one example - if it is a PR or
> a Github Issue, I'd like it to fetch summary(title) of it and create a link that looks like this:
> 
> [[https://github.com/user/repo/issues/3899][This issue needs to be fixed #3899]]
> 
> Do we have any "built-in" mechanism for doing something like this? Can someone suggest how I can
> make it. Thank you!
>