I adore anything Sally Hansen made. They are always great quality and true to what is written. The two products I gravitate towards the most is Insta-Grip fast dry base coat, and Green Tea Bamboo nail strengthener. The Insta-Grip is my base coat and it helps any nail polish I put on top last longer and dry a little faster than normal. The nail strengthener is what actually helped me make my nails long and stronger. I was a bad biter but this stuff really helped my nails grow and stay strong. You can also you it as a top coat. You can find both these products at the drugstore for less then $10. I highly recommend both!
*When all else fails, paint your nails <3