Hi Laura,
I have always used Hive wax pots both the old analogue and the new digital wax heaters; I have always found them to be good reliable wax heaters.
For me I only ever used Euroblonde Perron Rigot hot wax . IMO its the best hot wax and always does a great job. You may find it easier to buy a few sample sizes of various brands and try them for yourself and see what works best for you.
PR sell empty tins that fit most 1000cc heaters so you can decant small quantities of hot wax and try them, they also sell small sample size of the whole range of hot wax.
HTH Jack