Linktree - Connect your audience to all of your content with just one link.
YOURLS - YOURLS is a website that contains all the tools you need to create and launch your very own URL shortener. URL shorteners like bitly or TinyURL are fine for public use, but they offer limited options in terms of URL customization.
many.link - Add as many links in your Instagram bio as you want
Anonymous URL Shortener - Anonymous URL Shortener, Referer, Anonymizer, Redirection service.
Shorby - Shorby URL Shortener is an online utility that easily shortens all the URLs and automatically creates short links.
Lstu - A nice and open source url shortener. You can use it as service or install it on your own server.