My tips, select what is possible for you. All tips are based on 2x switch in stack for network redundancy:
0] buy another 2x(4x) 10Gbps card so you have 4x10Gbps
1] use 2x10Gbps LACP for VM
2] use 2x10Gbps LACP for Ceph
or you can mix 1] 2] on 2x10Gbps LACP, if acceptable performance
3] 2x1Gbps...