Mollies, contrary to common advertising, aren't a very good beginner fish.
I frequently recommend the book The Simple Guide to freshwater Aquariums by Boruchowitz for stocking schemes. It's cheap used, or in kindle or iBook editions.
It has a stocking scheme that is specifically "lots of small fish", and two that include angel fish. There are several dozen stocking schemes that are all good beginner fish, put together by an expert to look good and behave well and share common needs.
I think it recommends angel fish, swordtails, and cories. The expectation is the swordtails will breed and the angel fish will eat the fry.
For tiny fish it recommends 6 or more each of really interesting species like dwarf chain loaches, Pygmy cories, dwarf pencilfish, and pristella tetras, and a few sparkling gourami.
Research extensively. Everyone has varied experience and opinions, and many of those labeled as beginner fish in the store, the experienced people list as poor beginner fish.
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