You can try two (free) software:
vst3shell
shell2vst
Please note that these plugins are under development, so expect strange behavior or even crashes. Save your project frequently.
However, place your VST3 plug-ins in the following directories:
64 bit: C:\Program Files\Common Files\VST3
32 bit: C:\Program Files (x86)\Common Files\VST3
Create a folder (wherever you want) and extract the contents of vst3shell and shell2vst (which have 64-bit and 32-bit versions).
Drag vst3shell.x64.dll and vsti3shell.x64.dll to shell2vst64.exe (same for 32-bit version). It should create a subdirectory called VST3, containing the 64-bit VST2 dlls of all 64-bit VST3 plugins (all ~5kb).
Now you can move these plugins wherever you want and use them with Podium like any other plugin.