Bios Mods - The Best BIOS Update and Modification Source

I want to make sure the next laptop I buy has a moddable BIOS but I'm finding it very difficult to get info on what BIOS chips are in use. I'm mainly focused on Dell Latitude line at the moment, but am considering other brands also.

My mod rig only supports 8 pin SOIC and 3.3v so I only want to buy a laptop with BIOS of those types. The last laptop I bought had 16 pin and 1.8v BIOS  So I couldn't do anything with it.

I have d/led the tech repair manual for several Dell Latitude models and the photos show the MB model number but doing google searches on that has not resulted in spec sheets or any data on BIOS. Any ideas where to find this info? Or any suggestion on another manufacturer with more easily findable info?

You can try and use search function on this forums like NotebookReview for user experiences with modding BIOS on specific laptop models. Additionally, contacting Dell's customer support might yield detailed technical specifications for the BIOS chip used in their Latitude line. If flexibility in modding is a top priority, exploring alternative brands like Lenovo's ThinkPad series or HP's EliteBook line could also be worthwhile.