Most people will be using it as an LSP in their editors. Some companies might be interested in creating services on top of it. They won't be hosting the LSP, but they might want to use it to index code. And at that point there's at least some way for monetization.
Due to AGPL's viral nature they will have to open source their code if they use it as a library. But in general I feel like companies simply don't want to deal with the potential "threat" of lawsuits so they don't want to use it that way. This means they either search for other solutions or will try to negotiate some kind of deal.