Once more legal guidance is given a lot of these inconsistencies between exchanges will be cleared up and a better user experience across the board.
Reach out to Strikes customer service and put in a request to increase your limits. Be sure to specify an amount. They will do a review and get back to you. If you have a newer account you might wait a few months.
I like River because they provide a lot of stuff for taxes. The dashboards are built with that in mind from the start so you can see a detailed breakdown on your DCA.