I'd like to be able to mark additional fields as searchable. For a few examples if I search for Contra, Super C and Operation C don't show up as results. If I search for Pocky & Rocky, I'd like to see the Kiki KaiKai games show up as well and vice versa. Right now I have a custom field called Alternate Title (example: Super Contra for Super C, KiKi KaiKai: Nazo no Kuro Mantle for Pocky & Rocky) that I would like to make searchable. If not the option to toggle any field as searchable, maybe have a dedicated searchable word bank field. A word bank would make it possible to search and find games within a compilation release also, such as searching Parodius and having Konami Antiques MSX Collection show up.
I also saw someone else's request for a way to mark games as related (sequels, ports, etc). If that is implemented, an option to show related games in the search results may work as well.