How do I choose a phono preamp?

Are you in the USA?

Guaranteed by SkyFi Audio, with excellent pre-mounted MC Cartridge

https://skyfiaudio.com/products/luxman-pd444-vintage-turntable-w-new-lyra-delos-mc-cartridge

The arm has a removable headshell

https://darklanternforowen.wordpress.com/2020/05/31/fr-64-tonearm-fidelity-research/

Potential for a 2nd arm later if desired. A sliding/locking plate type  can be acquired at that time/ 

The Cartridge

https://lyraanalog.com/delos.php

You could discuss a second headshell in the package, an alternate cartridge choice, or adding a 2nd arm to start if you want.

also SkyFi Audio

https://skyfiaudio.com/products/technics-sp-15-turntable-w-new-sumiko-starling-cartridge-and-epa-b500-arm

I gave my friend one of these many years ago (from Harvey’s used shelf), and installed this terrific EPA-B500 Armbase and S arm with removable headshell a few years ago. It’s a lot of flexibility in a compact single arm plinth. They are not showing the dust cover, but presumably they include it. It is rear hinged/play up or removed. Modern TTs specs compare, but do not exceed that Vintage 3 speed SP15

If desired, this is the alternate arm wand, straight/fixed cartridge, they slide sideways out of the base easily and lock in position precisely, as does the arm height

I restored a TD124 and the shorter 9" version of this arm and loved it

https://www.ebay.com/itm/405162921750?_skw=turntable&itmmeta=01K9AHAV4ECEWWSFWBA8VRDQH1&hash=item5e55978f16:g:Z9gAAOSwlLJmuvSk&itmprp=enc%3AAQAKAAAA8FkggFvd1GGDu0w3yXCmi1euDDZcwJt4L1qKXTFJ%2FyzY9%2FaOGKpcU%2FbMZxUHhUZrjDLwCYVTsPY%2FaAjhmlSmGi6VwapWUvtkm42xCLlDEurcvd43xYzwI%2B%2B0UseeQ9gIJ5EXSHpINTCaIlikXHcMFQPObPPy3NqLiE%2BEhudhAeBZ4UXMkftIjxwH%2BU7eKplhANINiW1oNsetNJKUkspgvFY2NGnXU3mbVIPK%2BOBLGauwFHzn3ktWmYjwfKnyXnMjrgtTJaJCc5n9ryt1a5V%2FXDqKLU1Wdn%2BddnXrqT9rCHOeFEBJ1TIoNmmOL4lcVw%2FfyA%3D%3D%7Ctkp%3ABk9SR-6yq9HKZg

allows alternate cartridges via removable headshell

It’s bearing is succeptible to vertical movement, thus you need solid floors, or stable wall mount. 

My wood floors are too flexible, but I still miss it.

similar, more modern version, I never saw or heard one

https://www.ebay.com/itm/205056303522?_skw=turntable&itmmeta=01K9AGGDHPW2VSMVH3M0BPT2HR&hash=item2fbe4ee1a2:g:ei0AAOSw8O9nFvrA&itmprp=enc%3AAQAKAAAA8FkggFvd1GGDu0w3yXCmi1cT7mlY5gQEyoWJjepJIOSNhOb7sV%2B48SzPvdEKBkzzyg4Glqy4ZIJZzPQxZTCgsHD1XY%2FuDuuEmxAT17FlhY4AWIi1FAvhgj5obWhrqTvpIl1O68ZP5n9bci2KtngNpgeugIQeQJfp08%2FGOPB0qPvB8GUBI2KcDa4ug%2BsBLGa3sSN%2FabkpRRRDFaUI5cLK3VD8IrxqhY3S0XNZn%2Blf6D80W5Ho5%2BQt1y9BiS2lgEn8Cwa6pHccpgjClnN5at7giQ5BxI2qLdkkDB7mFultxJurwHivLgpRu6rnTuMOcjwpcQ%3D%3D%7Ctkp%3ABk9SR5zZwdDKZg

With an Album collection from the 80's, selecting a small qty to be cleaned and used for upcoming investigations will be very beneficial.

The Vinyl medium is the Source of  where the End Sound is originating from.

The die hards on this forum will support such a Practice.