I have about $5,400 invested in MAIN and SCHD.

I have about $5,400 invested in MAIN and SCHD. I have 60 shares of each. The idea is to contribute about 200 a month but the question is should I stick to one until I reach 100 shares, dump one and full port the other or continue adding the same amount to each monthly. I’m 34 and use Robinhood as my brokerage. I’d like to get a snowball effect sooner than later but I understand it will require some time. Is there any reason not to go in on MAIN or SCHD and pick a different route?