PCEngines alternatives

I love these boards a lot, but it looks like availability is going to be
really tight for some time.  Does anyone have any suggestions for
alternatives ?  ARM seems to be looking better and better, however, I
need something with more than one built in ethernet port (3-4 ideally)
and something with zero fans as the environments tend to be very dirty--
hence off the shelf Pi4 is not that attractive.

    ---Mike