I used to play pauper a ton and the two home brews I had the most fun with were mono red prowess (my pauper rendition of the Blistering Rage modern deck from MTG Goldfish)
https://deckstats.net/decks/56090/469186-burness-mono-red-prowess-/en and my temur battle infect deck (your usual infect suspects there, but splashing red for a bunch of double strike effects)
https://deckstats.net/decks/56090/503360-temur-battle-infect/en Clearly, these need to be revisited as I haven't updated them since the
Gitaxian Probe ban and there might be some nice, new additions that have come out in the last 3-4 years since I was playing with these. (Either
Rite of Flame over the probes, or maybe something to deal with anything annoying in the meta these days.)
Neither will probably win you any tournaments, but on MTGO they would frequently catch people. "nice glass cannon a-hole, see you next game..." then rage quits on the game 2 when they see the T1
kiln fiend :p) Both struggled with MBC, but could usually race tron or delver or any of the other big meta decks back then.
Other infect builds (Mono G) will be more consistent with the pauper mana base, but folks don't generally expect the trample
Temur Battle Rage gives you, so if you wait until you can one shot them, they don't see it coming and can't do much to stop it if you keep up protection.