Ground cover in an alpine / rock garden

[DrWhy]

We’ve just build a greenhouse and the location means there is about a 1.5m wide raised (1m high ish) bed behind it now, which is somewhat tricky to access but still very visible from the decking next to it.
We have some big rocks taken out when the greenhouse foundation was built and I was thinking of putting down weed membrane, then the rocks and making a kind of alpine or rock garden. I’d like something that’s as low maintanence as possible, which I suspect means getting some ground cover type plants in that will grown fairly quickly, not just small succulents.
The bed is south facing but the greenhouse now partially shades it from that direction.
Any suggestions for plants that would suit? I don’t want to just cover the area with the kind of thing that gets planted as council ground cover!

I am hopeless at the names but go into the garden centre and just look at the mini alpines. Most will spread fast. Another good one is wild strawberries. Attracts bees and birds and looks pretty.

Arabis old gold is good, spreads nicely, early spring white flowers and variegated leaves all year.

Bugle (ajuga) is also great ground cover, lovely spikes of flowers in spring. Tough as anything.

Aubrieta, Campanula, Saxifraga and creeping thyme. Creeping juniper to punctuate in some places?

Fantastic! Thanks folks! Just come back from the garden centre with several of the suggestions above! I’ll take a photo of it when it’s all in place

Thyme spreads and covers well, the bees love it.

A small campanula I planted last year has spread to around 2ft by ft and I dont always have much success in my garden

Donkeys ear - stachys Byzantina - has very soft leaves and is green for most of the year. I had no success from seeds but planted plants instead.