I want to start collecting this line, just want the main OG SF cast and don't really care about the exclusives. I was just wondering is it still easy to find all these figures in store/online?
YES, very easy! In fact, ALL of them are on Amazon, Big Bad Toy Store, and other online toy stores for msrp! Ryu, Fei Long, Ken, Chun-Li, Dhalsim, M. Bison.
Even the exclusives are still very easy to buy. You can still buy the SDCC 2024 Violent Ken and Pink Chun-Li from the official Jada NextLevel website for retail as well.
The only exclusive that you'll have to pay a slightly higher price from 3rd party sellers now is Evil Ryu from SDCC 2023 and he's not even that expensive, there's one for $60 on ebay and it was originally $45 last year I think.
It's really very easy to collect them.