Idk what kind of work you need done but if it’s something you/your team can support internally then Tableau or PowerBi are pretty good for a data visualization/analytics tool. Both are pretty easy to use and stand up an environment for. Plus there’s insane amounts of free content available to learn both.

If you truly need an implementation partner, I’d look at procuring your own platform and then picking your partner rather than going through a one who offers it for you as a bundled cost. That way if you need to terminate your contract early you still own your platform.