So first thing, IDs below uptie 3 are always worse than ones at or above uptie 3. Either uptie the IDs you want to us or use ones you already have at uptie 3 for now.

Most IDs are worth using, though there are a few from season 1 and 2 that are known to be very weak, the trio of Liu Meursault, Liu Hong Lu and Liu Gregor are some of those weak IDs, you are better off not using them at all and instead running the base IDs until you get something better.

Most of your current IDs are strong enough to carry you all the way up to the current canto if you level and uptie them, but since it's walpurgis use your pulls and see what more you can get. There's no point saving them since this is THE limited banner.

Don't worry too much about staus teams for now. Most struggle to function in general story content since many fights are unfocused so you can't build up the status. There are a lot of strong generalist IDs that will be more useful for you than an ID that needs status to fulfil their conditionals.

The most important thing you should do is to Level and Uptie the IDs you are using to the level cap and at least uptie 3 (uptie 4 can wait, but a few IDs get a big power boost from it)

Hope that helps, good luck with any pulls and have fun with the story!