In my books, the following are the best stand alone products for 1500 VP Standing Order in SFI.
1. 125 TCredit pack, 1500 VP.
2. Advanced Liquid Nutrition, 32 oz Bottle, 1500 VP.
3. 200 TCredit pack, 1661 VP.
4. 50 PSAs to go, 1622 VP.
The above are the products I can immediately recall now whose stand alone can give any affiliate EA monthly. Others can be combined in various combinations and in numbers to make up the required 1500 VP for the month.