I have an acquaintance in Sweden, Småland, who has a genealogy search and tour business. She lives in Nässjö. She'd try to find your relatives, also, if you wanted. I think she does as little or as much as you want. If you are interested in getting in touch with her for more information, please IM me and include your email address and a description of what you know about their origin location, etc. I'll then send the information to Irene to contact you? Or vice versa. She's charming and fun. She started this business after I was there in 2015. I had a great time seeking out my ancestors in Sweden.
In Eksj⍥, there is a genealogy segment of the museum that looked items up for me. The TI put me in touch with them, which led to citizens just helping to show me around and locate family homes. Sweden loves their cousins to return and is very helpful. Do you know from what area in Småland your ancestors emigrated?
I thought Skansen in Stockholm was quite informative as an outdoor museum. There is a search museum, but I can't remember off hand where it is...began with a V... With a little luck I'll wake up in the middle of the night with the city's name. I did not need to go there. I think it was listed in Lonely Planet if you want to take a look there.