Brother I have some suggestions from my side although I have not even the inch of milestones achieved by PW gurus
Though it all depends on the dates you are visiting Chitral and mode of transportation you would be using, but you can get some helpful idea from the following itinerary:
Day 1: Start from Pindi at night from Pir Wadahi and take Chitral bus / coaster (or on your own vehicle) but stop at Drosh in morning. From Drosh, you can have a day trip to Madaglasht (a very beautiful and calm valley but still less discovered). In the evening, depart from Madaglasht and have a night stay in Bumburet, a sub-valley of Kalash.
Day 2: Visit Bumburet (the largest and most picturesque valley in Kalash) which has around 6 beautiful villages. Enjoy all of them. Night stay in Bumburet.
Note: If you are visiting Chitral in mid of May, than you can enjoy Chilum Joshi Festival in Kalash Valleys (held every year 13-15 May).
Day 3: If you wish, you can visit other sub-valleys of Kalash. i.e. Rumbur (smaller than Bumburet, but many people prefer Rumbur over Bumburet because Bumburet has become more commercial now while Rumbur is still more peaceful) & Birir (smallest one). You can stay a night here or can go for chitral for night stay
Day 4: Go for Chitral and spend a whole day in Chitral. Main attraction of Chitral city is Chitral Fort and Shahi Mosque
Day 5: Go for Chitral Gol National Park. One must visit this and take a pleasure of jeep safari around Chitral Gol. If time allows, do visit Garam Chashma. Night stay in Chitral
Day 6: If not able to visit Garam Chashma on Day 5, then go for it in Day 6 (Garam Chashma is 30 to 40 km from Chitral; 2 hours? drive). Otherwise, you have some other options like Barmoglasht (a beautiful and charming resort, situated 14.5 kilometers from Chitral) or Qaqlasht.
There is another option of trekking towards Tirch Mir base camp, but didn?t know about it exactly that whether it is a day trek or feasible with current conditions, etc. You should confirm it on spot.
Day 7: Leave early from Chitral for Shandur Top. This would definitely be one of your most memorable journeys and you would be able to see some beautiful settlements of Buni, Mastuj and Sor Laspur on the way. After visiting Shandur Top, return to Chitral. Night stay in Chitral
Day 8: Return Journey
Best of Luck