Watashi, Kumo na Monster wo Tame Shitanode, Spider Silk de Saiho wo Ganbarimasu!

[MangaDex]

 

[hymnote]

This is very cute.

 

[Werebearguy]

This greatly reminds me of another series that had a child living with a spider monster. Can't remember its name, and it wasn't as wholesome (as of chapter 2 anyway), but man. This ticks a niche checkbox I didn't even really consider. I'm glad I managed to come across this series.

 

[CrunchyGrass231]

This greatly reminds me of another series that had a child living with a spider monster. Can't remember its name, and it wasn't as wholesome (as of chapter 2 anyway), but man. This ticks a niche checkbox I didn't even really consider. I'm glad I managed to come across this series.

Would it be 'Possibly the Greatest Alchemist of All Time'?
The mc tames a spider monster, one with a maple leaf symbol on its abdomen, thus ending up with it being called maple.

 

[Hicleric]

Also reminiscent of https://mangadex.org/title/962ed908-bc1b-4592-a08d-63c2ed82132c/maiden-of-the-needle, which unfortunately had all its chapters DMCA'd

 

[Elaborate]

Not bad, but the artist is a bit lacking.
The MC's spider monster is supposed to be big enough that she can ride it to town while it's dragging along about ten cocooned monsters. That's why she's getting a pile of magic stones back from the dismantler, and why she has to rent a large room to sleep in.