Sometimes, you might find it easier to use devices rather than spells, and there are several writers out there who can give you ideas.
There are some excellent, if deliberately spoofingly funny, magitech devices in Terry Pratchett's Diskworld novels.
For instance, his novel "Thud!" has Watch Commander Sam Vimes struggling with the use of his equivalent of a Blackberry- a pocket-sized magical "goblin" in a magical cage. Similar critters are used for his world's equivalent of photography, except the goblin has an easel and paints. In a sense, they are magical beings bound to an object and given a task- not an unfamiliar concept, but definitely unusual in his application of it.
Harry Turtledove's quite serious Darkness novels- stories set in the equivalent of WW2 in a fantasy world- have all kinds of magical analogs to RW tech...guns, tanks, planes, the Atomic Bombs & Manhattan project and even the Nazi Final Solution have their magical equivalents. The tanks & planes are magical beasts under human control, while the guns are similar to wands of Magic Missile...or items that mimic a Warlock's eldrich blast. The fantasy equivalent of the Nazi Final Solution is a program of necromancy that uses the souls of the slain to power a ritual used as a weapon against soldiers.