Cloud seeding once or twice a week when conditions are right. Replanting native trees, grasses and wildflowers, and some of the African countries are doing with the "Middle East Green Initiative" that got started, to plant a total of 50 billion trees.
Egypt joined two years ago, and you can see your president speaking at the COP27 on YouTube at https://www.youtube.com/watch?v=QO8PcbxOu0Y
That process got started between 2002 and 2010 when the Saudis adopted my proposal to set aside 200 million hectares, to replant as Ecological Restoration Preserves.
That is the first step, Egypt needs to set aside a large area of preserves, to replant also. My proposal is at https://www.ecoseeds.com/cool.html
We are having a discussion about this on Research Gate at https://www.researchgate.net/post/Climate_change_or_water_resource_management_Which_has_caused_the_intensification_of_dust_storms_in_the_Middle_East
Our current discussions are about the native trees which produce rain clouds, by the Pseudomonas bacteria which live on their leaves--see https://www.discovermagazine.com/planet-earth/does-rain-come-from-life-in-the-clouds
Contact your government, about your National Sustainable Development Strategy "Egypt 2030" and report back here how many millions of hectares your government is planning to set aside as preserves, and then planting, and the number of trees.
The Saudi goal is one million trees per week until 10 billion are planted. So far, 44 million have been planted. Iran's goal is five million trees per week, until one billion are planted in four years--already 250 million planted.
Desertification in Africa can be reduce by planting of trees, breaking the seed dormancy and studying weather the plant can be grown vegetatively and enhancing the growth hormones for the plants can be of importance in curtailing the impact of desertification .
Keep pristine areas pristine and eradicate exotic species from affected areas and eliminate anthropogenic damage :)