Inherited Collection with issues, I need help identifying what!

[Rockabilly]

Hello. I have inherited a collection of 20 phals and im not sure if i should keep them. They have been rather neglected for at least 6 months and have many leaf issues. I have spent a week now on Google trying to learn all I can but I believe maybe photos of my issues would be better. Believing google the plants each have 10 different things wrong with them. I have spent this morning with a magnifying glass and spotted what I think to be soil mites but that is the only live thing I saw. I am not worried about ugly plants but I can't decide if I have thrips, spider mites or it is just damage and neglect with the watering.. There are new leaves coming and many nice bright green roots so at the moment the plants seem healthy enough. Thank you.

The bad leaf pattern on plant #1 is on several plants but the plants have new large leaves above them.