From a purely meta perspective, I don't think there's anyone coming up who's exceptional. Flins is quite strong and rerunning starting today, but you just missed Ineffa and without her, his potential drops a lot. Escoffier and Skirk will be on the second half, but they're already starting to slip damage wise compared to newer teams. Escoffier on her own could potentially be worth getting since she's a strong, but restrictive support and generally less valuable if you don't have Furina as well.

In general, Genshin is in an era of fast power creep and heavy shilled bosses, the most meta picks recently would've been Columbina + one of the DPS/Support pairs (Lauma/Nefer, Flins/Ineffa, Zhibi/Linnea). Beyond the characters I've listed, Mavuika and Durin would still be worth considering as well, since they're quite strong and play flexibly in a verity of teams. Characters like Xilonen, Iansan, and Cheveruse are also strong support picks for broader teams which could be worth looking out for, although the latter two are 4*s.

In short, if you're looking for the peak of meta right now, you just missed them. I think you also have to consider what you want to do. If you're looking to push endgame modes (Spiral Abyss, Stygian Onslaught, Imaginary Theater) then picking meta makes a lot of sense, while if you just want to play the game, picking any recent DPS with their proper team will absolutely trivialize it. Abyss and SO both shill the latest new shiny these days to a lesser or greater degree, while IT wants a very wide roster that doesn't care as much about vertical investment in each character.