Sobre
When finding two other people, we advise that they are not your closest colleagues but, in fact, those that you have not worked with a lot (or at all) until now.
These two other people could be from your organisation, a pool of trainers you belong to, a trainers’ association in your city or country, etc.
Reach out to them and make sure you have an agreement that you are a trio now.
In case you find yourself in an international group of trainers, you could also form your trio based on geographical closeness if you feel that there is a chance that you could actually meet in person.