Words that contain 'r' and end in 'ch'

Which word that has 'r' in and ends with 'ch' is the most popular word in the dictionary?
As far as popular words go, there's 'church' which is the 778^th most common word.

What's the total number of words one can assemble using this combination of letters?
There are 601 entries.

Which word on this page has the largest letter count?
'labyrinthibranch'

In Scrabble, what is the most points possible using words that have 'r' in and end with 'ch'?
Given there are loads of words to decide on, it's best to pick 'mizrach' which scores 23 points in total.

What is an unique word that has 'r' in and ends with 'ch'?
The most weird word from this page is surely 'pearch'. The definition of 'pearch' is as follows: "See Perch.".