So, I got them connected to my old Marantz 2230, and even though it has seen better days, the speakers are playing flawlessly and I'm really enjoying them.
Now I just need to get the 2230 fully restored to its former glory. Since I last moved it (it has been cabin luggage twice in the last 2 years) the FM stopped working and it definitely shows some signs of being tired and a slight hiss on all channels when no music is being played.
The speakers themselves look great in the living room and provide all the sound I might ever need. Even connected to the 30W per channel of the 2230 they just scream and I cannot see myself ever going past half on the volume knob. Pretty sure the 2230 isn't outputting 30W any longer either, after almost 50 years.
Thank you all for the help and replies. The base actually looks better in real life than on the photos I showed here.
If I were to get a modern amp to use while the 2230 gets restored, would the Onkyo A-9110 be a good option? Seems to rank high as an affordable amp.