Yeah i tend to like ground and fire pokemons and Marowak and Sandslash are some of those that i really like and i cant really use for the reasons that you said already.
I also have a list that i did on Excel lol to see how many i can get right, gonna post it here, i dont have typings and methods of evolution just predictions, here it is.
! Fearrow- evolution yeah i also have it my list, most ignored bird ingame, i actually use one as my HM flyier because i feel sorry for the bird, haha.
! Pikachu- Raichu is useless it has no endurance even though it has a kinda neat special attack, i want a split evolution for the rat since we know he comes in every generation.
! Sandslash- got it also.
! Fartfetchd- useless right now and one of the most badass flyiers in game it needs an evolution.
! Onix- pre evolution the thing is just too big, need an pre evolution wich could give him maybe some new moves,etc.
! Marowak- reason given above, its not bad but it need an evolution with a good stats boost to be better for competitive battling.
! Lickitung- pre evolution, i also think its kinda big, the evolution made it usable but i want a pre evolution.
! Jynx- make it usefull like its counterparts, Magmar and Electabuzz.
! Mime- same as Jynx.
! Pinsir- pre evolution to get one new attacks like some others and an evolution to make it usable, its not mandatory since he isnt bad but it has been kinda ignored.
! Tauros/Miltank- split pre evolution and maybe an evolution.
! Lapras- pre evolution.
! Sudwoodo- i think of it has Jynx/Mime/Electabuzz/Magmar counterpart so it also deserves an evolution to make it usefull.
! Girafarig- pre evolution.
! Dunsparce- evolution to make it usefull.
! Heracross- its a beast no need for evolution or stats boost i would like if we kinda got a split pre evolution for him and Pinsir.
! Ursaring- evolution, it has an awesome attack and ability but i would kinda like a normal/fightning evolution with a little boost on the defense stat.
! Skarmory- pretty usefull great tank i just want a pre evolution.
! Migthyena- kinda of a fan of the pokemon and i want it to be usefull so yeah a evolution with a stats boost would be awesome.
! Sableye- same kinda like it and needs and evolution, stat boost.
! Mawile- Sableye counterpart that also need an evolution for the same reasons.
! Torkoal- Needs an evolution, its not bad but a little stats boost would be cool, plus the turtle is awesome.
! Bannette- Why did they forget about it :(, it much cooler then Dusclops and its pretty much useless right now so evolution and stats boost would be welcome.
! Manectric- Stat boost evolution.
! Pachirusu- Poor thing was cheated out of an evolution, we need a assasine squirel evolution.
! Carnivine- Pre evolution and Evolution i felt it deserved a 3 pokemon line and it really needs to make it more usefull.Some more could get evolution like Kingler, Stantler but i dont want to see too many even the list i made some should be cut maybe but i dont know how many new pokemons we will have so it hard to make an estimate to what should be reasonable or not.
Robby i find it hard for Ditto or something like Luvdisc to get evolution they dont evolve gimmick pokemons usually, thats why i fear Farfechtd might not evolve either they kinda have their own gimmick, same with Spinda, Plusle and Minun, etc, ofc i also think its possible to evolve them and mantain the gimmick.
Heracross needs a speed boost. His speed sucks compared to all the other great fast sweepers out there…