Isekai Yururi Kikou ~Kosodate Shinagara Bouken-sha Shimasu~ - Vol. 6 Ch. 37

[MangaDex]

 

[Pietje013]

Some of the covers i recognise, but from which serie is the purple haired girl?

 

[Hekela]

Some of the covers i recognise, but from which serie is the purple haired girl?

If you mean the one with the short purple hair that's in the first column, 3rd down, then it looks like it should be "Ojousama no Shimobe/The Lady's Servant". Never read it before, so I can't guarantee it