DP is early 30s and has absolutely no financial awareness whatsoever. He's self-employed earning around £60k a year but starting a pension has never occurred to him 
He's asked for my help in setting one up but I've always just had a workplace one and had no idea how complicated the options are.
Can anyone recommend one that is easy to set up and easy for him to add probably around £400 a month? He's not financially savvy at all, has all his money in the world in his current account and so something overly complicated will just put him off.
The other thing is that he currently has a Lifetime ISA which we plan to combine with mine to buy a house next year. I know you can also use this to save for retirement. Is it a better idea to just continue to save in there once we've bought the house or is a proper pension plan necessary?