>>75435829I don't think they need a ton of help. They are doing fantastic for small chuubas. Nasa, Michiru and Iori took forever to grow past 10 K subscribers and become 3 view. Only last summer I was surprised to see Michiru scraping the 100 viewer mark while playing Elden Ring with a club.
But if you want a more serious answer, clips. Clips are probably very useful; it's surprising that animal fren has held for a long time doing clips of only 3 JP chuubas. Also by supporting Loki-sama and Yuu; they are biggest ones, so if they grow they can also bring in new viewers for Pico-chan and Memory; that's kinda what happened with with Pippa and Phase; many people discovered her, and eventually moved to other chats.
And obviously they should have collabs, the picofellow in pcg says Pico-chan is trying to collab with a ton of Japanese 2-views, so she just needs to continue with that; playing ARK and Rust and other games seems cool. Memory has also been doing a few collabs, including a karaoke relay some weeks ago.