Any succulent specialists in for help with ID please?

OH came home with these. Any ideas?

1.

2.

3.

4.

Pic 4 is actually darker green than shown. Thanks all.

 

3 looks like Echeveria to me, which one is debatable.
Got a feeling no 4 is and Echeveria also, even though it looks like a small Agave

1&2 not something I've come across, other than "Burrows tail" which looks similar to no 2 but I dont think it is.

 

1 could be a trailing Peperomia, some are sold alongside succulents although they are not strictly one.

 

3 looks like

Yes i have one.
ID Please

 

Number 2 is possibly Sedum rubrotinctum. If it is then it will turn more red/maroon in summer sun.

3 is Echeveria, maybe E.pullidonis or a cultivar or hybrid thereof. Hopefully it will have yellow flowers and I won't look a total twonk!

Number 4 looks like an intergeneric hybrid between Aloe and Haworthia. Commonly sold in places like Lidl as Aloe. They are surprisingly hardy if kept dry- mine croaked in the last cold spell although I suspect that it was too dry and a drop or two of water may have helped it to survive.