Kaiser's range of sprung metal Doll Stands are one of the "go to" models in the US and used by NECA in particular for presentation of some of their figures.
Here in the UK it is a bit tougher (and more expensive) to get hold of them, but it can be done.
If you are looking for a robust stand for your 7-inch scale figures (NECA, Diamond, Mezco) then this stand is for you (checkout the smaller 1175 model for 5-6" figures). Fitting to the figure will depend on the height, waist and bulk of the figure - so a Diamond Select Hulk for example or perhaps a Cloaked Movie Thor will need an alternative solution.
The stand works by having an adjustable metal waist clip which you position around your figure. This then slots into the high gloss base and locks the figure in place. On some figures you will see the waist clip, so it does sacrifice some looks but is hugely effective at keeping figures upright - even under any significant "bumping" your cabinet may get.
The 2075 comes in Black, but there is a White version for 6" figures (Kaiser 2001) if you search around. I guess the colour will be driven by the cabinet you are storing these in. Based on our purchase of pack of 12 on import, and these stands will work out around £2.50 each.
(UK customers please note you can buy direct from US and with custom costs and delivery this should still be cheaper than the current UK re-sellers on these stands)