I recommend reading this thread, a lot of good recommendations here.

https://www.fruityrumpus.com/forums/t/favourite-sburbventures

But if you're looking for some OBSCURE MSPFAS, Like really obscure, here are some gems.

Frank and Forthright Manner (https://mspfa.com/?s=54392&p=1): FedoraFreak's session, hasn't updated in a while but i think it's very well made.

Housescape (https://mspfa.com/?s=48508&p=1): It's a good MSPFA, was canceled a few years back but it's a fun read. I don't really know how to describe it, Homestuck but it's an adventure game with silly mechanics? Either way it's like 200 pages.

SBURB (Zero Punctuation) (https://mspfa.com/?s=40257&p=1): This is a fairly short MSPFA about a game review of SBURB by game Critic Yahtzee Croshaw of Zero Punctuation and Fully Ramblomatic fame. Its pretty funny. This is a fully finished MSPFA too, which is nice.

Good Daveternoon (https://mspfa.com/?s=39676&p=1): By the same author as above. Basically Dave needs to get to his roof from his now non-existent apartment.

Last and certainly not least!

SBURB: GRISTLESS (https://mspfa.com/?s=55920&p=1): To be upfront, this is a canceled MSPFA, it's also unlisted so its basically double canceled. Can't get more obscure than that. But for the 85 pages that It went for before it's cancellation, It's genuinely amazing. This MSPFA Is basically what if one of those over the top and bodacious youtubers (Dream, Mr.Beast, ya know the type.) went and played SBURB for a video with friends. I just re-read the entire thing and it's just as good as i remember.

I hope you enjoy reading these!