https://www.amazon.co.uk/Collins-Easy-Learning-Starter-Ages/dp/0007984502/ref=asc_df_0007984502?mcid=96c0253dafcc31b49f2b378de8c3c150&tag=googshopuk-21&linkCode=df0&hvadid=697324738289&hvpos=&hvnetw=g&hvrand=15249225775669921683&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=1007289&hvtargid=pla-1128619192312&psc=1&gad_source=1
With you mentioning about home schooling paying for classes might be a bit of a stretch. I used to take my LO to music bugs classes. I would check if your area offer anything like that. I would also consider taking them to mums and tots groups as well so they are having the chance to make friends with other children.
My in laws bought my LO a microscope for Christmas and the idea is to go around the garden collecting things and looking at it. Then also got a book showing different insects you could find in the garden. I thought that was brilliant. https://www.amazon.co.uk/Microscope-Definition-Microbiological-Observation-Educational/dp/B0BKSPN9H3/ref=asc_df_B0BKSPN9H3?mcid=c879da766ac63d949e9f6c11f4308949&tag=googshopuk-21&linkCode=df0&hvadid=696350735901&hvpos=&hvnetw=g&hvrand=17209257022957167584&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=1007289&hvtargid=pla-1965750041909&psc=1&gad_source=1 https://www.amazon.co.uk/Bugs-Spot-Usborne-Minis-Smith/dp/1474952178/ref=pd_aw_fbt_img_m_sccl_1/257-7549502-4666038?pd_rd_w=B99NR&content-id=amzn1.sym.84d5cadd-9cb8-4d05-9ec7-b5c8e1280f79&pf_rd_p=84d5cadd-9cb8-4d05-9ec7-b5c8e1280f79&pf_rd_r=FRB2HKHP5QMCVW64QYT9&pd_rd_wg=R7rKy&pd_rd_r=44d14b08-211c-48b9-9fd4-6e89a9c78d5a&pd_rd_i=1474952178&psc=1
https://www.theworks.co.uk/p/activity-books/ready-set-learn-pack-of-10/WKS_9781788433792.html?gad_source=1&gclid=Cj0KCQiAqL28BhCrARIsACYJvkfsKNeTda0W2BARCgCeecn2Q4CtJnNFn9Zwwn5Y-MMCn420IigUIBEaAspMEALw_wcB
Axel books seem to have a lot of resources: https://www.axelbooks.com/products/biff-chip-and-kipper-stage-1-read-with-oxford-3-24-books-collection-set?variant=41737924935855¤cy=GBP&utm_source=google&utm_medium=cpc&utm_campaign=google%2Bshopping&gad_source=1&gclid=Cj0KCQiAqL28BhCrARIsACYJvkdAS582foPs8zrnMl_gVLcRRNxyWKQDGrkgnx0trJW72c_W4WYENsEaAmNjEALw_wcB
Don’t listen to others pre-school is optional. EA curriculum: https://ccea.org.uk/downloads/docs/ccea-asset/Curriculum/Curricular%20Guidance%20for%20Pre-School%20Education.pdf Free downloadable worksheets: https://www.worksheetfun.com/preschool-worksheets/ I have seen workbooks on Amazon you could try. Miss Rachel has a good song to teach phonics that my LO loves. She does cover other areas as well. Good on you for wanting to home school. I know with me working full time it isn’t an option.