You can shower at toddler without a bathtub by having the toddler stand in the regular shower or sit on a waterproof chair.
Or simply add a plastic tub to a shower and have the toddler sit down and bathe in the plastic tub such as a plastic storage tote.
Then pump the water out of the tub or pour it out if it's small enough.
You can also have your toddler sit on a bath mat and shower them normally with a handheld shower head.
If the toddler is small enough you can also shower the toddler in the Kitchen sink and use the kitchen sink sprayer to shower the toddler with.
You can use regular Dove soap or other regular soap on your toddler.
Regular soap can be used on toddlers but some toddlers may be more sensitive to certain soaps and may require kid soap that is made with less harsh chemicals but Dove Soap is not all that harsh.
It's better to bathe a toddler but you can also use a shower wand to help shower the toddler off.
Some toddlers hate the shower water hitting them so baths are sometimes needed instead but eventually the toddler will get used to the shower as you introduce them to the shower.
Showers get you clean better than baths but sometimes toddler prefer baths.
The body wash that is best for toddlers is Darlyng & Co, SoCozy Curl Shampoo, Aveeno Body Wash, Bioderma Atoderm Cleansing Shower Oil.
You can also use regular body wash on your toddler or regular bar soap for cleaning your toddlers.
You should wash your toddlers hair at least once a week.
Washing your toddlers hair more than once a week can dry out the toddlers hair so unless the toddlers hair gets dirty then once a week is good enough for washing the toddlers hair.
The age that you should stop using baby shampoo is around 8 years old although it's okay to use baby shampoo after 8 years old and even adults can use baby shampoo.
Toddlers and baby's do not need any hair conditioner as the baby's and toddlers hair is too fine to need any hair conditioner.
As the toddler gets to 4 or above then they can use hair conditioner.
Toddlers can use any body wash as long as the body wash is unscented or body wash that is scented with natural essential oils.
It's best to use body wash made for and formulated for toddlers and kids but they can use any body wash or other soap.
Kids don't need body wash but body wash is a good cleanser for kids.
Kids can use bar soap for cleaning their body's when bathing or showering but body wash is better for kids and even adults at getting clean.
I personally myself use bar soap first and then use body wash after so I get double clean but it doesn't really matter what you use for yourself or your kid for keeping clean.
Whatever is cheaper or better for yourself or your kids to use will will fine.
Many kids use bar soap for washing their body's as do many adults.
However some kids and adults prefer body wash.
Make sure your kid gets their private areas clean and also their armpits as sometimes some kids tend to miss cleaning those areas.
Aveeno daily body wash is good for kids and teens and adults.
Although kids can use adults or other body wash but for kid's it's best to use body wash that is formulated for sensitive skin.