If I remember correctly, Raichu was originally placed fairly highly during the Sigilyph meta back when teams were generally more offensive and having Pokemon that could outspeed and kill Sigilyph was a huge deal. It's really not as good anymore. It has good coverage for bulkier teams, but it misses lots of OHKOs because of its shitty base 90 Special Attack. Right now, it's in B-, but I think C+ is a bit more fitting. On the topic of low quality Electric-types, Zebstrika is probably better in C- or D. It's so goddamn pitifully weak, and its only niche is against faster offensive teams, where Scarf Rotom and even the aforementioned Raichu would be better options. Another overrated Electric-type is Rotom-F, which definitely has a niche with STAB BoltBeam but is still generally outdone by Rotom and even Rotom-S. C+ seems fine for this guy too.
Drifblim is probably a bit overrated. It could drop to C+. SubLiechi Acrobatics Unburden is cool, and the Sitrus version of AcroBlimp is usable but nothing spectacular.
Mr. Mime should be C+ at best. Offensive sets aren't fast or strong enough to compensate with its terrible bulk, and Screens sets only have Taunt to separate themselves from Uxie and Mesprit.
Leafeon could rise up to B-. It's a great offensive check to Feraligatr, Kabutops, and rain teams in general, and it has Synthesis to act as a good switch into Ground-types in the early game without getting weakened, as well as Baton Pass to give the boosts to something scarier.
Electivire is alright, but Magmortar is much better at breaking balanced and defensive teams. Magmortar doesn't deserve to go to A- in my opinion, so I'd like to see Electivire drop to B.
Ditto can go somewhere around C. It was better in Venomoth meta, but it's pretty inconsistent now. You also have to deal with dicks running Frustration over Return. :(
Bastiodon should probably go down to D. I'd rather use Steelix almost 100% of the time because it also phazes and sets Stealth Rock without being weak as fuck. Wouldn't cry if it stayed in C- though.
I honestly think most everything else that hasn't been covered since the last update is pretty much fine. There's some arguably questionable stuff, but a lot of those things are preferential.
EDIT: OH SHIT I FORGOT CRUSTLE LOL. Probably A-. The face of Spikes offense, but other hazard leads are also quite good, compared to Omastar which was nearly always the best choice.