Hi all, was given some succulents last week and have become a bit obsessed with researching how to care for them. I'm a complete newbie and really scared of hurting them in any way!

I was planning to put them together in one pot, but now not sure if this is advisable. Also, I've read you should not water after repotting, but their soil is really dry and think they maybe showing signs of dehydration. I've bought some cactus/succulent soil mix and a huge bag of pumice, I hope this will be a good mix for them.

So my main questions are...
Should I pot them together or separately?
Should I water them after potting (or maybe dampen the soil a little) or should I water them and wait a little longer to repot?

I've attached some photos of them plus the pot I was planning to put them in.

Whether or not to put them in the same pot is kind of a matter of personal style. Some people have strong opinions. The few times I did it, things mostly did not turn out. The plants may have uneven growth rates, or one may take over the pot. I like individual pots because they give me finer control over each individual plant, in terms of pot size and light and water.

Definitely do not water until a few days to a week after you repot, depending on how much you actually handled the roots. Or water the plants right now in their current pots and then wait a week or however long it takes for the soil in them to go (mostly) dry again. I guess if you have pots on hand or easily available then now is the time to do the move.

The pot in the picture looks a little large but it's hard to tell the depth. Think about the amount of soil volume in the current pots and the soil volume in the community pot. I generally do not more than double the volume each time I move an individual plant up a pot size. Don't make huge jumps in pot size (say more than 4-5 fold by volume) with succulents and you will find the water management much easier.

Dry soil is not an issue for any of your plants as long as it alternates with wet soil on a regular basis. They can go for a surprising amount of time with zero water (so can easily tolerate a couple weeks without any) but are happiest long term if the soil goes properly wet on a regular basis. There is no benefit to regularly allowing the soil to stay bone dry for any extended period. There is however a risk of rot if you do not allow the soil to dry out most of the way in between watering.

Bigger pots hold more water than smaller pots, and tend to take longer to dry out, especially when they are not filled with thirsty roots.

Mix the soil with an equal volume of pumice and you're good to go.

If these will be indoor plants, they should occupy the brightest spot in your home, like right in front of a sunny southerly facing window (assuming you're in the northern hemisphere). They should "see" the sun for hours a day year round, weather permitting.