M1 iMac USB hub

I need advice from those of you using already released versions of the M1 Mac. I intend to get the M1 iMac, but it only has USB-C slots in back. The standard USB and the card reader slots are gone. So I need to get a hub for my SD camera card, USB3 external drives with my TimeMachine backups, etc. Can anyone point to one that will work well? Thanks.