First of all, I am in the UK.
Currently I pay the default salary deducted contribution (3%) into my workplace-provided pension, which is matched by my employer (the maximum they will match). I am in the happy situation where I can start to contribute a little more to my pension. I was wondering whether I would be better to contribute more to my workplace pension, or take out a separate private pension. (The rationale behind the separate pension was not having all my eggs in one basket...)
The other alternative that I know of would be an ISA. Are there any other alternatives?