I'll come out with an anti-recommendation: Don't do GitLab.
They used to be quite good, but lately (as in the past two years or so) they've been putting things behind a licensing paywall.
Now if your company wants to pay for GitLab, then maybe consider it? But I'd probably look at some of the other options people have mentioned in this thread.
I'm all for foss but foss shall not be a reason to stay behind. We've got enough money to pay for it. We just can't host it anywhere. We have to selfhost it. If there's a good reason to use gitlab over forgejo, we will use gitlab.
Gitlab's main advantage is the tight integration with CI/CD and a web based IDE. But it has some annoying limitations in the non-enterprise version.
Forgejo is great, but it comes with only community support.
You can get commercial support from the Gitea project (from which Forgejo forked off), but if that is something important for you, Gitlab has probably also better commercial support structures in place.