Basso Ascot. Primo ride with a double, great for rides with no climbs in excess of 5%

Lemond Buenos Aires. Another Primo ride but with a triple to help this old man get up steep hills but still havel closely spaced gears.

Schwinn Tempo. It's tre colori, gotta have tre colori. Also has BMX pedals on it, kinda nice to have a road bike with flat pedals sometimes.

Olde Legnano. L'eroica ready, just in case.

MB-3. Dad's old bike. Plus everyone should have a lugged steel MTB.

Carbon hardtail. Life's too short to ride heavy bikes up steep hills. This is also my flatbar gravel bike.

Ellsworth Joker, full suspension for stuff too rough for a hardtail .

Ritchey Commando fat bike. I've got 3 wheelsets for this one. Used for snow rides, dirt touring, etc.

Kent Glendale single-speed. Beater bike, grocery getter, whathaveyou

There are a couple more, but that covers most use cases. If I lived in a place with UCI-sanctioned CX races I'd probably get a CX bike too.

Almost forgot about the tandem, for tandeming