I’d recommend a road speed suit (with a couple small pockets in back) vs. a TT speed suit that doesn’t have pockets. IIRC Castelli was one of the first to come out with their San Remo suit. Others have followed and now most manufacturers make a road speed suit that is designed very very similarly to the San Remo. Basically you can use it in crits, road and even the ITT w/o much aero penalty compared to one w/o pockets. Some manufacturers I’ve tried AND recommend:
https://www.elielcycling.com/collections/mens-speedsuits/products/mens-santa-ana-road-suit
https://www.castelli-cycling.com/us/men/tops/speed-suits/p/451800018P-010
https://eu.cuore.ch/eu/en/mens/cycling/suits
And finally Ale. They made one as well but, I don’t see a current link. Only tri suits, but, I’d highly recommend them as well if they still make one.
Others that friends have used and like: Vermarc, Louis Garneau, Champion Systems