If you're using octal type tubes, there are sockets made for industrial
relays which fit the tubes perfectly. They are as you describe; surface
mount with side terminals. They no doubt add a small amount of
inductance and capacitance which could affect VHF operation, something
to keep in mind. McMaster-Carr has them on page 819 of their online
catalog:
=============
These surface mount sockets have substantial screwed connections and are
made of PVC which as suggested might not be the optimum for VHF applications
,but also might not be able to cope with the heat produced by the relevant
valve (tube), especially when the valve is of the medium to high power
variety.

Frank GM0CSZ / KN6WH