Revised ranger module?

i am super new here so i dont know if there is something that can be done on the topic or where to look for it

me and a couple of friend wanted to do a campaign whit the DM of the group suggesting to do it on foundry ((which i actually have real like the site and all it offers))

i have choose to go ranger and i remmeber there had been a Unearthed Arcana , Revised Ranger where they have make the beast master subclass to actually work unlikely the one you have on the books and DnDBeyond and general like all the changes on it

the problem is i cant seem to find anything at all and i am not sure i look at the wrong place or it is just nothing that is not support and cant be done

it is doable or just better change to another subclass and saving mineself from a lot of work??