It really depends on your requirements.
The end of life announcement for the WAP321 didn't specifically call out a model
Given it was targeted at small business there basically two options (unless you want to also buy a controller to manage the access point):
- Meraki Cloud Managed (easy to setup and all the backup hard part of config is done in the cloud) - Tip you may be eligible for a free one with 1 year of licensing by watching a webinar they run this promotion regularly - https://meraki.cisco.com/en-au/freeap/
- You can then extend the licensing out after that year if your happy.
- Cisco Catalyst 9100 AP - running the Embedded Wireless Controller. Will require more skill to setup as not as simple as just defining the SSIDs and VLANs.
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