Decide what this part of the season is for
Before looking at destinations, agree on a sporting purpose. Perhaps the player needs their first experience away from home, practice on a particular surface, or a chance to compete at a different level. “Play more tournaments” is less useful than “choose a manageable trip where we can practise the things we have been working on.”
Ask the coach which playing conditions fit the player's preparation. Ask the player what they are looking forward to and what worries them. A family may be excited about an international trip while the child is concerned about travelling, missing school or competing without their usual coach. Those concerns belong in the discussion, not after the flights have been booked.
Choose events by their fit with that purpose, not only by the reputation of the tournament. Age group, category, surface and likely field help you compare options, but none of them guarantees a particular number of matches or a result.