>>526984284
You should wait a couple weeks until the anniversary; virtually everything, including survivors. Usually for half off, so you could get two for those 500 cells instead of just one. There's sometimes even sales for purchasing with shards, which pretty never happens any other time except maybe around Halloween.

That being said, out of those in your pic: Leon has flash bang, and Cheryl has some decent if somewhat niche perks. I don't have Alan Wake myself so I can't say and Soma you can get with shards so don't waste cells on him.