As an owner of a 2017 Vado 5.0, I answer:
Front: Baramind BAM Trek suspension handlebars.
Rear: Either Kinekt 2.1 or Redshift ShockStop Seatpost. (Only Kinekt comes in 30.9 mm diameter).
There is one big problem with the MY 2017 Vado 5.0: The thru-axle is non-standard there. If you would like to source any suspension fork, you would need to buy a new compatible wheel-set, which is very expensive.
If the matters were simple, I would have replaced the fork back in 2019 when I bought my 2017 Vado 5.0.
Why not the Redshift ShockStop Stem then? Because the MY 2017 Vado is equipped with a non-standard stem... And that model requires an operable display that has to be mounted centrally on the original Specialized stem and which allows display cables go through the stem.
BAM Trek handlebar is especially designed for Trekking and E-bikes. With 12° backsweep and 660 mm width, its shape is more sportive than BAM City. Compatible with electric assistance displays and KlickFix / Ortlieb system (but not both together). 100 % manufactured in France.