L'Oreal Advanced Hairstyle Boost It High Lift Creation Spray is an affordable product that I like to use after I curl my hair to "make it big". I will spray it at the roots and crown for lift, and hold up the sides of my hair and do a quick spray. It sprays on like a hairspray, but doesn't leave a sticky residue. I suggest doing short quick sprays, to work in sections, and not to go excessive. You can also use this for backcombing or teasing.
Bumble and Bumble BB Thickening Dryspun Finish is a pricey spray, but works really well. I find myself using this one on second day curls to make them look thicker and restyled. I'd almost say this is a hybrid product - part dry shampoo/part texture spray.
Comparison: The Bumble and Bumble is lighter on the hair and is powder based. I find it works similar to a dry shampoo, and adds texture to the hair. The L'Oreal aerosol spray is more so a finishing product to add volume. Be careful with how much you spray because too much can bring knots and frizz.
Bumble and Bumble Pret-A-Powder is ahh-mazing! It touts itself as an all in one hair styling product - "dry shampoo, style extending, and volume benefits" and I totally agree. This is my go to pretty much everyday. It prolongs my style, soaks up excess hair oil, and I don't have to wash my hair as often. This is great because my color lasts longer too! In my opinion, this is a must buy!
Oscar Blandi Dry Shampoo is my favorite dry shampoo. I'm not a fan of spray formulas because I honestly have never found one that works. I find powders absorb hair oils better, and actually make your hair look cleaner. This one smells great too. I did a full review if you'd like to read more.
Comparison: Both are very similar, but I find the Bumble and Bumble is more of a style extender and quick lift, where as the Oscar Blandi is a better as a dry shampoo that cleans and refreshes oily hair.
What do you use to amp up your hair?