Using a primer for your miniatures is a must. Without it you will undo all your hard work. So, here's my tips and advice to help you out.
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Need help with priming - getting paint bumps and threads. : r/minipainting
Guide to Sealing/Varnishing Your Miniatures (Recommended Buys)
Paint Minis Faster - Redgrasscreative
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Stahly's best primers & spray paints for painting Warhammer miniatures » Tale of Painters
A beginner's guide to choosing miniatures paints – International Tabletop Gaming Club Berlin e.V.
airbrush beginner need help priming : r/minipainting
Stahly's best primers & spray paints for painting Warhammer miniatures » Tale of Painters
Hobby 101: How to Prime Models and the Basics of Priming
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