so take your pokemon around you for times
soothe bell, on your team, dont let them faint, or
give some extra protein, calcium, carbos etc and berry that they like (but I rarely doing this, such a waste of items)
got massage/hair salon
for couple of day
I save my game
give them a plenty of rare candy
so if it takes about 15-20 rare candies for them to evolve
wew I still need a lot more effort to them...
reset
and doing some things again
save again and try rare candy again
if this time it needs less than 10 or 5 rare candies
so it is close to evolve
reset again and level it up