Tama is hard to scale because she's completely dependent on what animals are around her. Before, it was even worse, since she herself had no means of giving her Chibi Dongos to enemies without risking certain injury/death.
If she gets some Ninja skills, and can shoot her Dangos into animals mouths without relying on other people (like Usopp during the Raid), she's a lot more useful.
So, without any animals, she's around kid-Usopp level, but, if Tama gets access to a ton of strong animals and has the Ninja skills to tame them, she'd probably be around low Tobi Roppo level, like Page One.
If Tama was in an area with actual ancient beasts, like the OG dragons Kaido and Momo's Fruits are based off of, she'd really shine, though.
Tama is a total wildcard in terms of power level, it all depends on what island she's on, and if she can actually get the Kibi Dangos into the animals she wants to control.
Her Fruit's Awakening would be really interesting to see. Maybe Tama's Awakening allows her to turn her animal companions Sulong? Or, she can tame actual Zoans for a short time?