I'm a plat 2 player which has recently stopped playing league for a while so now i cant play at my level so i said to myself well lets just play normals to train and i found out things such as how you can be plat 2 and be matched with either masters or fresh level 30 players(most of the time its level 30 players with 1-2 diamonds) which makes training in normals really difficult so i ask is there a place where you can train without losing lp?
Normal MMR and Ranked MMR are completely separate.
High ranking players don't play a lot of normals generally, so their MMR in normals is lower than their Ranked.
All you can do is pound out Normals until your normal (hidden) MMR is where it belongs.
There isn't really any way to get what you are asking for.
Normal wins/losses don't really matter if your goal is ranked progression. You should be easily able to get rid off the rust playing normals. Quality of your opponents/teammates doesn't help you much with practicing last hitting, map awareness, objectives, or familiarity with champion kits etc.
