You can't really do better than the miniature radial Rubycon ones that I mention at post #118 in your earlier (now closed) thread.
https://www.vintage-radio.net/forum/...=152795&page=6
I wrote:
Suitable miniature Rubycon capacitors can be obtained from Farnell.
47uF 400V rated ones are only 12.5mm diam x 30mm tall.
They're 105 degrees rated, have a more than adequate ripple rating and long life, with a stated life of 7,000 - 12,000Hrs. They'd easily fit permanently under the chassis, but you should of course insulate the positive leads where they join the existing red wires, and the caps mustn't be left just dangling. (They would also fit inside the can).
https://uk.farnell.com/rubycon/400tx...831328?st=47uF Rubycon capacitors
The datasheet of this range of capacitors is here:
http://www.farnell.com/datasheets/23...025.1497772082
End quote.
A pic of a selection that I've used is attached, with can types shown for size comparison.
I invariably re-stuff cans, especially when there's no space beneath the chassis. The pics below are of a re-stuffed twin can on a Unitra Figaro Special - a compact receiver with no space to spare beneath the chassis. The can was 30mm diameter and two caps fitted side by side, but could have been stacked above each other. I'd not suggesting that you attempt to do that on your set, which has plenty of space beneath the chassis to accommodate the three new capacitors.
Have fun.