Where to go with Spanish?

My girls are 8 and 10 and we are doing Song School Spanish this year.  But what do I do next year?  I looked at the next level after Song School Spanish but there is a lot of writing and grammar things in it.  DD10 is a struggling reader and speller and I don’t want to introduce the reading/spelling of a different language when she is having a hard enough time with our own language!  DD8 would probably excel with it.  We are doing everything orally with Song School Spanish.  Sometimes we use the worksheets but I just have them point at the picture that goes with the word or I’ll read the question and they answer it.  The next level doesn’t look like I can do that.  So what do I use next year to help them keep progressing and not loose what we’ve learned this year?  Or can I do the next level and just skip the workbook?