Hey there, Aud! Good to see you here! Nice plants!
my 2 cents: (some, as others have said)
1. Haworthia limifolia var. limifolia
are 2. & 4. the same plant? possibly Aloe barbadensis (vera), but could be other (blooms would help ID)
3. a variegated xGasteraloe (there's been some discussion elsewhere about ID of one like this in the trade)
5. Aloe variegata, leaves look longer than what is normally seen on this
6. could be Aloe grandidentata (need blooms to confirm) ~not likely A. harlana, as very rarely seen in the trade (but sold as such-most times hemmingii or other similar spotted Aloe). If it were A. maculata, I believe it would have larger spots.
