£500 per month to invest - but where?

[FrankAbagnale]

I am looking to start investing circa £500 a month with a medium to long term view on the return. With respect to risk, I am not risk averse but on the other hand am not going to start chucking it in to penny stocks of dubious oil companies or dodgy horse racing syndicates.

I have looked at the cellar plan with berry bros which is essentially depositing the money in to an account every month and they either buy and store wine as an investment for you, or you can buy/sell wines on their trading platform. It seems like an interesting way to start investing in a growing market with the help of an expert?

https://www.bbr.com/cellar-plan

Obviously, I could start a trading account and buy shares in industries I think will grow over the coming years and leave them to sit there topping up the investment on a monthly basis. But, that doesn't really appeal to me.

I have some time I can put aside to keeping on top of the investment and also learning/researching about whatever it is I am investing in.

So, in summary, a £500 a month investment that carries a medium risk that could also be help me expand my knowledge in a particular area. A lifestyle investment?