Hi,
You can use CE6800 series switches.
6881-48S6CQ has 6 x 40/100 GE QSFP28 uplinks ports
6880-24S4Q2CQ-EI has 4 x 40 GE QSFP+ and 2 x 40 GE/100 GE QSFP28 uplink ports.
Hope this solves this problem. Please let me know in case more information is required.