Maybe most effective way are the way that coin will be bought by different groups for example:
1 group buys with 3$
So to keep price level up other group buys when price 5$
And third group of people buys 6-7$
This won’t work. Firstly crypto is very volatile and that comes due to free will of buying and selling with any amount possible.
If you think one group is still going to hold until prices reach to 6-7 bucks then that’s misconception of yours. If someone bought the shitcoin and see the prices souring up to 5 bucks then they have already made around 60-70% of their holding so they will immediately start selling. The price will never cross 5 bucks in theory.
To move the market, you will need huge research on the market cap situation of that shitcoin. How much is being held, demand and on going supply.
Just like what @pooya87 said above.