Advice from a fellow female here. I'm 5'3" and 119lb. I have used both Ostarine and LDG4033 and GW about 10 years ago. Skip the Ostarine if you want growth and not just re-comp, it took a long time to kick in and didn't do much for me. LDG works great for women! I added 5 lbs of pure skeletal muscle in less than 12 weeks with a moderately intense 2x weekly program despite being 45+. Adding muscle is hard for women, much harder than many men usually understand so 5lb in 3mo is pretty good.
DO NOT DO 15mg! Not even 10mg! Female biology is much different than men with sarms. As a small woman with a female biology that amount is pushing liver damage. The most I comfortably used was 7.5 max, starting at 3 and working up. At 10 I started elevating liver enzymes on blood work, and it started messing with monthly cycles. They studied LDG on older post menopausal women at doses less than 3 and it still worked, even considering they were middle aged with no exercise. I did have some water retention with LDG but it comes back off easy enough. LDG should be cycled off at 12 weeks taking about 8+ week breaks to clear receptors. I tried to stretch it longer and started spotting. It took several weeks to really start feeling it, but at about week 3 I suddenly noticed my upper pecks and arms were really starting to pop out. I'd try to stay under 10 and use a good liver support supplement and do 12 weeks since it takes time to start working.
The GW helped with stamina during workouts. I noticed that cardio was easier and it didn't drain as much energy from the lifting if I did some treadmill to warm up before workouts. With GW I was less aware of over training and had to be more mindful to keep to the program and not overdue it because I had the stamina and pain tolerance to keep going. I don't think GW did much for weight loss for me but I would think it could help one get through more cardio which burns more fat. I don't do regular cardio anymore, I find it more efficient to do "cardio acceleration" (aka Jym Stoppani-https://www.jimstoppani.com/training/cardioacceleration ). At 40+ cardio was stressing, elevating cortisol, so I incorporate it into lifting instead of doing it extra.
Also consider adding some growth hormone peptides. CJC and Ipamorelin. I added them in later in my program and they seem to really help for 40+ women because we loose natural growth hormone at that age. They are even good just for longevity.
RAD and YK are too strong for women and can even cause hair loss (elevate dht). s4 was weird with me, didn't notice any benefit but I got the vision issue.