A retail place or other place that your town has more than you think is necessary.
A couple examples: Dollar Stores or Churches (no harm no foul meant here)
I’ll start: CAR WASHES.
Omg it’s getting to be that there is one or more on every busy intersection! Are that many people washing their car on the regular? Is there truly money to be make in car washes?!!
Weed dispensaries
Boba shops
Nail salons, storage facilities, dentists.
Nail salons, pizzerias, folks have been complaining about too many independent coffee shops which I can’t understand.
An independent coffee shop on every corner is ok by me! 
Ah, yes! Jersey has far too many pizza shops and nail salons 
I used to count things like churches and banks on my way to work. I think it was about 15 miles and once I got to about 6 miles I could take a few different routes. I think I counted 30 churches one day, some huge, some smaller than a house. Banks? 20 or more, not counting those in grocery stores along the way.
I think there are 10 schools on the route between my house and my sister’s, which is about 4 miles. I avoid driving that way between 2 and 4 pm even though it is the most direct route. There are also at least 4 daycares.
Oh, also too many bike lanes! They’ve taken parking lanes and second lanes and made them bike lanes, complete with white stakes so they look like slalom courses. Rarely are they used by bikes as bikes can just use a traffic lane and they do because they don’t want to be behind the white poles which aren’t cleaned by street sweepers as, yes, the white poles block them so there are sticks and rocks and holes in the bike lanes.
Mexican restaurants!!
Stand-alone banks that are dead empty 90+% of the time. Chase and Fifth Third, specifically. They are putting them up non-stop and there’s never any cars there.
Mattress stores
Amen!
Nail Salons, Massage Parlors…
Weed dispensaries are definitely one.
Car washes are a big private equity investment and one reason why you see a lot of them imo
Car dealerships
Boba tea and salons.
Self serve frozen yogurt (pay by weight) stores adjacent to acai bowl stores.
Banks and nail salons
Coffee shops, self storage places and pizza restaurants .
Dunkin Donuts.
We lost a lot of strip mall type stores during Covid and some have not returned. I can think of 2-3 Subways that closed, and many of our ‘family casual dining’ places have closed like Village Inn, Perkins, Black-eyed Pea closed (and they tore down the buildings so they won’t be back).
Dollar General. There are four within 5 miles of my house and 9 within 7 miles. This seems excessive, to me at least.