Here's a clip with Solomone Funaki's highlights. It's a clip from 2019, so mostly footage from the Hawke's Bay Saracens (the Magpies Development team). You can see him in the 7, 8 and 20 jersey.
I don't know how good he can or will be at SR level, and whether he will be better than Harmon or Lentjes, because he simply hasn't played at that level yet, but he's bigger (heavier, at about the same height).
He's in the Tonga squad, so you'll be able to watch him if he gets into the matchday 23.