What powders and primers are available in your area? Could name powders and primers but if they also ain't available it won't help. Let us know what you can get and it shouldn't be hard to come up with similar loads.
I don't know where you are located, but Google-Recobs target shop. They have good component prices and some of the best availability and they combine powder and primer Haz-Mat. A few of the guys and I, at the club get together a couple times a year and share the Haz-Mat and freight charges. Bill
When you say direct replacement I don't know that you will find another combo that will work with out bushing changes (charge adjustment). If you mean similar performance then there are lots of options.
Promo will work like Red Dot but has somewhat variable density specs so you generally need to change powder bushings when you switch from RD to Promo.
CLAYS and 700x are two other great powders that have similar applications to Red Dot but agian they have their own sets of loading data. (not direct replacements)
Primer changes also need to be considered by reviewing published loading data. There really are no direct substitutions there. But if you follow the published loading data for your given primer and powder choices, most primers will do an excellent job for you.