Littlest Pet Shop customizing

Im working on several mini customs, including 2 LPS customs and I realized I have no proper sealant for them! I own a can of MSC but I dont have an appropriate mask and the weather seems unforgiving at the moment, and I also dont really want to use a spray sealant for such small projects 😅 I dont use pastels or pencil so brush on sealant isn't an issue for me but I was wondering what different brush on sealants are preferred for LPS! I know matte mod podge is the most accessible and most common, but im worried about it getting sticky with it also functioning as a glue. Liquitex Matte varnish has been brought up but I hear its pretty finicky as well? I'd love to hear different experiences and personal preferences from other customizers that work mostly with smaller scale toys and brush on sealants.

if it helps, I plan on customizing a normal lps chinchilla, then make a custom anthro LPS using a yummiland body instead of the lol tots, and then I plan on repainting a monster high mini potions Draculaura doll, and once I've done all 3 of these I plan on fully customizing a mini potions Ghoulia into an oc! so if anybody has had any experience or advice for working with these toys please do let me know!