Wanted/available throughput is much more indicative than number of clients. However: contemporary offering (WiFi 6) from Mikrotik would be hAP ax2, hAP ax3 or cAP ax. A slightly older offering (only WiFi 5) would be Audience (strong performer, it's got 2 radios on 5GHz, one is actually 4 chains radio).
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Mikrotik wireless for home and office page.