@MaliableTick
i've read three of Teddy's recommendations and concur with Kusuriya, Tomo-chan and Sengoku, enjoyable reads probably more classified as he said then necessarily tomboys. Don't know the other two. I haven't finished it but don't be intimidated by Tomo, each chapter is actually only a page.
Suggestion
If you have a little patience I would consider using https://www.mangaupdates.com/index.html , see search suggestions below . The site does not have the mangas but is just a database. But many that you can find using the search will have a description if you follow the links. Not sure it is completely up to date, but it will also show if they have the latest releases listed if any and the groups doing the scanlating. Ex, https://www.mangaupdates.com/series.html?id=83705 last release chapter 20 over three years ago. Then you can come here and search for it.
The categories has two Tomboy tags. Also if you use the https://www.mangaupdates.com/series.html?act=genresearch you can narrow the list by checking what you want, like I want Comedy, I don't want Hentai in the Genre section. Then in Categories text box paste Tomboyish Female Lead or Tomboy/s (the two categories for Tomboy) and hit the search button. That should give you a decent list unless you narrow it too much.