Finding affordable alternatives to high-end hydrating concealers can be a challenge, but it's not impossible. With my background in Chemical Science, I can assure you that there are budget-friendly options that can deliver similar results as their high-end counterparts. Here are a few suggestions:

1. Instead of Tarte's Maracuja Creaseless Concealer, try NYX Professional Makeup HD Photogenic Concealer. The NYX concealer has a similar creamy consistency and provides excellent coverage. It's also enriched with hydrating ingredients like glycerin, which is a humectant that attracts moisture to the skin.

2. If you're a fan of NARS Radiant Creamy Concealer, consider Maybelline's Fit Me Concealer as an alternative. It has a lightweight, hydrating formula that blends seamlessly into the skin. It contains tocopherol, a form of Vitamin E, which is known for its moisturizing properties.

3. Swap out YSL's Touche Éclat High Cover Radiant Concealer for L'Oreal's True Match Super-Blendable Concealer. The L'Oreal concealer is formulated with glycerin and aloe barbadensis leaf juice, both of which are known for their hydrating properties.

4. Instead of Bobbi Brown's Intensive Skin Serum Concealer, try Neutrogena's Hydro Boost Hydrating Concealer. The Neutrogena concealer is infused with hyaluronic acid, a powerful hydrating ingredient that can hold up to 1000 times its weight in water.

5. If you love the hydration from Laura Mercier's Flawless Fusion Ultra-Longwear Concealer, consider e.l.f.'s Hydrating Camo Concealer as a budget-friendly alternative. This concealer is formulated with rose flower water and sodium hyaluronate, both of which are known for their hydrating properties.

Remember, the key to finding a good alternative is to look at the ingredient list. Look for hydrating ingredients like hyaluronic acid, glycerin, and aloe vera. These ingredients will ensure that the concealer doesn't dry out your skin and provides a smooth, flawless finish.