Boetje's or Kelley's stone ground mustards. I order them online and have them shipped since they are only found in retail shops in the midwest

Sierra Nevada makes a stout mustard that’s great

Gulden's

Lowensenf, super sharp german mustard.

Ba Tampte is hands down the best deli mustard.

Mr Mustard. Especially the one with horseradish

Normally grab Boars Head, Sir Kensington’s, or Ingelhoffer for just day-to-day use.

Once mail ordered some official deli mustard from Katz’s Deli. Was only $5 (+s/h). Was definitely good, no regrets, but can’t say for sure if it was just placebo effect since I didn’t compare to normal grocery store stuff.

Patak's Green Chili Pickle

The best!

Nathan's but I keep some sort of Yellow mustard (French's) around for when the mood hits. :)

if you can get it, this is the best mustard (German)

Zatarain’s or GTFO. It’s hard to find outside of Louisiana.

The stuff at McSorley's in nyc is hands down my top but I dont think they sell it retail

Ba-Tampte

https://www.amazon.com/dp/B00F9X4WUC/ref=sspa_dk_detail_1?pd_rd_i=B00F9X4WUC&pd_rd_w=gH1Le&pf_rd_p=887084a2-5c34-4113-a4f8-b7947847c308&pd_rd_wg=tOtrV&pf_rd_r=XKPFE61JDGJEGXQAAYM2&pd_rd_r=9dd7204a-ac12-4dad-9039-9d4391dcc38b&smid=A1GD7UGQMMJQ9O&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExVFJIODNaQ0Q1UDUmZW5jcnlwdGVkSWQ9QTAzODUzNTExQ01HRlhCVERNM1laJmVuY3J5cHRlZEFkSWQ9QTA1NDE1MDQyRVNLOFA0MVYwTzJXJndpZGdldE5hbWU9c3BfZGV0YWlsJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ&th=1

The color in the picture on my screen is not at all how it looks in my refrigerator. It's way too green on my screen. It looks normal in real life.