1st one looks like a crested Aeonium variegata. Don't know if that's sun damage, but I'd pick off the dried up, dead leaves.

2nd one is some kind of Aloe Haworthia hybrid; pls take that mossy stuff off the top. It can lead to rot &/or help hide insects.

Yes, 3rd one is some kind of Echeveria; don't know which one. Pls try not to handle the leaves as it rubs off the whitish stuff which the plant needs.

Pls be sure ALL the pots have drainage holes, that's a must.

Interesting looking soils, except the 3rd pic. The dark soil btwn the pumice looks very fine & water retentive.

The third is likely either perle von nurnberg or purple pearl, they look similar

KarenS, thank you for your IDs. As for the soil, in the third pic that is a cactus and succulent potting mix that I added a bunch of perlite to. Should I repot it with a different soil? What do you suggest?