In addition to things others have mentioned (use Citibike, lock up close to the business you're visiting): some businesses will let you bring your bike inside. Just ask... some places may give you the nod.

Also, Jersey City made a deal with Ooonee to operate 30 secure bike parking locations around the city: probably smaller versions of the one at Journal Square. When this was announced about a year ago, these were supposed to start opening by the end of 2022. I haven't heard anything about this recently... hopefully the plan is still on track.

https://www.reddit.com/r/jerseycity/comments/r0mxkw/jersey_city_makes_oonee_secure_bike_parking/