Welcome to the Community,
the network configuration you need to configure depends on whether you need Internet access form the guests.
Without Internet access use: "Host-Only" (=VMnet1)
With Internet Access use: "NAT" (=VMnet8)
Both settings offer DHCP (range 192.168.x.128 ... 253), but you can also assign IP addresses in the appropriate subnet manually (e.g. 192.168.x.3 ... 127). In case of "NAT" you also need to set the DNS server and Gateway to 192.168.x.2.
André