Curious if you've looked at these games:
Daemon X Machina (FPS)
DoA Xtreme 3 (Res or FPS)
DQ Builders 1 (Res bump, if theres headroom)
FE Warriors (Ditto for FPS mode)
Hyrule Warriors (720p handheld?)
Kirby Star Allies (FPS)
MK8 (3/4 player FPS)
Monhun GU (FPS)
Pokemon LG (FPS)
Mario Odyssey (Higher res cap?)
Last Remnant (FPS)
Apologies if any of these have already been asked, & thanks for all the mods!