...without trust and sympathy nothing is going to work

In many types of massage the body contact between you and the massage therapist is extremely tight... this needs trust and symphaty.
Therefore look closely at the salon before. Among other things, a professional studio recognizes that masseurs have recognized certificates, that they value privacy and that hygiene and cleanliness play an important role.
Talk to the therapists, let them show you everything and then decide if you feel good. Because only then you can really relax and do something good for you and your body.