1. Put

 /execute as @e[type=armor_stand,limit=1,sort=nearest] at @s if block ~ ~-0.1 ~ minecraft:redstone_block run teleport @s ~0.2 ~ ~ 

in repeating-commandblock and active it
2. Summon an armor stand with Motion tag. Ex:"/summon minecraft:armor_stand ~1 ~ ~

"

It move wrongly when it is teleporting, its Y position seems to be under 0.5. But it become normal when it don't teleport.

https://imgur.com/JEcHzjO.gif