Investing £5k - sharia compliant - ideas?

Longfacefish

I have £5k available (after keeping some money aside for emergencies) that I'd like to invest. I am specifically looking for halal/sharia compliant investments. 

I used to use Wahed Invest but withdrew after some bad experiences with them, and am looking for an alternative.

I see companies like AJ Bell have Sharia compliant ETFs, would this be a good route to go down? I am looking for long term investment (5 yrs or more) and to regularly top up investments with any returns and extra savings.

What things should I keep an eye out before making a decision?

Longfacefish

I dont see an option for editing, I wanted to also add whether anyone has used InvestEngine, which seems more cost effective than AJ Bell