In 8S, the cells would alternate on connections. + to - on each cell to the adjoining cell. This would require using a BMS as the voltage would be nominal 24V. Do you have a 24V BMS? My guess is you are building a 48V pack and have a 48V BMS but not sure if you have a 24V BMS.
Are you using a power supply or charger? With the power supply you can turn the voltage down to 3.65V and charge using C.V. (constant voltage) with cells in parallel.
Would be best to let us know what you have for charging and what you have for any BMS's. Photos or links to what you have.
What do you for a BMS? The idea behind using the BMS is to charge cells up quickly until one cell causes the disconnect, then finish balancing cells in parallel. It doesn't take long to finish balance on 8 or 16 cells in parallel after charging using the BMS A few hours and it will be done.

JK BMS 8-17S - 80A Continuous - 150A Peak - 0.6A Active Balancing - JK-BD6A17S8P

Is my BMS.
I wasn't going to charge them either BMS just a DC charger but all I have is this Jesverty DC Power Supply Variable, 0-30V 0-10A Adjustable Switching DC Regulated Bench Power Supply with High Precision 4-Digit LED Display, 5V/2A USB Port, Coarse and Fine Adjustment SPS-3010 https://a.co/d/5vuiH5g
But I was thinking I get a second one of those and then could charge 2x 24 volts at 10 amps? Maybe I can wire the chargers in series to achieve that.