About which Bhikkhu Subhuti explain in his blog https://americanmonk.org/where-to-ordain/ as below.
Anyone interested can have a look at their way of teaching beforehand on their youtube channel.International Theravada Institute:
This will be a great monastery to build great monks. I think this might be the best place to train and ordain, but you will need to be patient on learning full time meditation. There will be time scheduled for retreats during the training though. The abbots are very kind and highly intelligent. They might be some of the most well learned monks in Sri Lanka actually. I might go there some time later on to complete some studies and training
IIT- International Institute of Theravada