I hope this will come to someones benefit. I used the otzer hachochma online site for the first time today, in order to find what they call "sifrei yesod" which include tanach mishna shas rambam tur sh"a there is a button all the way on the right under the three tabs, after you click on the tab that has a picture of seforim than click on the button which also has a picture of seforim.
(sorry for not being more detailed, i would post a pic but i never learnt how and cant find info now)