I used to really be into dommes and BDSM but have been away from that scene for quite a long time. You could try the Max Fisch listings at
External Link/Members OnlyThe site has been around many years, the current listings go back about 10 years so many will be out of date no doubt. There are no reviews but the site has always listed the more 'serious' and dedicated type of domme, i.e. most have proper dungeon facilities, lots of equipment, clothing etc and take safety and hygiene very seriously. You won't find many that are just a lady armed with one cane and a flogger but no clue about domination.
I'm sure you should find some possible options. Many of the ladies listed are very attractive.