By Nepal discussion site we came at a site with recommended guides in Nepal. We made the decision after reading the good references.
We were not disappointed. The Jiri trek in combination with the Goyko Lakes, the Cho-Lapas and Kala Patar was very well managed by them. And it was nice to see that there was not a guide and a few porters, but it was a team. The porters were sometimes a guide and who was the guide, he always carried a part of the luggage. Lal, Sagar and Shera gave us a feeling of safety and confidence. They look after us during the day and changed the plans when there were problems. It is a very good choiche to go with this trekkingagent!!!